677678840 has 32 divisors (see below), whose sum is σ = 1526143680. Its totient is φ = 270828672.

The previous prime is 677678809. The next prime is 677678849. The reversal of 677678840 is 48876776.

It is a super-2 number, since 2×677678840² = 918497220367491200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677678849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41537 + ... + 55503.

It is an arithmetic number, because the mean of its divisors is an integer number (47691990).

Almost surely, 2^677678840 is an apocalyptic number.

It is an amenable number.

677678840 is an abundant number, since it is smaller than the sum of its proper divisors (848464840).

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

677678840 is a wasteful number, since it uses less digits than its factorization.

677678840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15191 (or 15187 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 53.

The square root of 677678840 is about 26032.2653643512. The cubic root of 677678840 is about 878.3642305522.

The spelling of 677678840 in words is "six hundred seventy-seven million, six hundred seventy-eight thousand, eight hundred forty".