678201552 has 320 divisors, whose sum is σ = 2380800000. Its totient is φ = 184415616.

The previous prime is 678201521. The next prime is 678201583. The reversal of 678201552 is 255102876.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (678201521) and next prime (678201583).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3407949 + ... + 3408147.

It is an arithmetic number, because the mean of its divisors is an integer number (7440000).

Almost surely, 2^678201552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678201552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1190400000).

678201552 is an abundant number, since it is smaller than the sum of its proper divisors (1702598448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678201552 is a wasteful number, since it uses less digits than its factorization.

678201552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 678201552 is about 26042.3031239558. The cubic root of 678201552 is about 878.5900078675.

The spelling of 678201552 in words is "six hundred seventy-eight million, two hundred one thousand, five hundred fifty-two".