77066248 has 64 divisors (see below), whose sum is σ = 172523520. Its totient is φ = 31579200.

The previous prime is 77066221. The next prime is 77066263. The reversal of 77066248 is 84266077.

It is a self number, because there is not a number n which added to its sum of digits gives 77066248.

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 15 ways as a sum of consecutive naturals, for example, 178593 + ... + 179023.

It is an arithmetic number, because the mean of its divisors is an integer number (2695680).

Almost surely, 2^77066248 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 77066248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86261760).

77066248 is an abundant number, since it is smaller than the sum of its proper divisors (95457272).

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

77066248 is a wasteful number, since it uses less digits than its factorization.

77066248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 77066248 is about 8778.7384059442. The cubic root of 77066248 is about 425.5540603032.

The spelling of 77066248 in words is "seventy-seven million, sixty-six thousand, two hundred forty-eight".