77238256 has 10 divisors (see below), whose sum is σ = 149649152. Its totient is φ = 38619120.

The previous prime is 77238251. The next prime is 77238263. The reversal of 77238256 is 65283277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77238251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2413680 + ... + 2413711.

Almost surely, 2^77238256 is an apocalyptic number.

It is an amenable number.

77238256 is a deficient number, since it is larger than the sum of its proper divisors (72410896).

77238256 is a wasteful number, since it uses less digits than its factorization.

77238256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4827399 (or 4827393 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 77238256 is about 8788.5297974121. The cubic root of 77238256 is about 425.8704301518.

The spelling of 77238256 in words is "seventy-seven million, two hundred thirty-eight thousand, two hundred fifty-six".