77207268 has 24 divisors (see below), whose sum is σ = 190747872. Its totient is φ = 24221824.

The previous prime is 77207261. The next prime is 77207269. The reversal of 77207268 is 86270277.

It is not an unprimeable number, because it can be changed into a prime (77207261) 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, 189030 + ... + 189437.

It is an arithmetic number, because the mean of its divisors is an integer number (7947828).

Almost surely, 2^77207268 is an apocalyptic number.

It is an amenable number.

77207268 is an abundant number, since it is smaller than the sum of its proper divisors (113540604).

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

77207268 is a wasteful number, since it uses less digits than its factorization.

77207268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378491 (or 378489 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 77207268 is about 8786.7666408071. The cubic root of 77207268 is about 425.8134694399.

The spelling of 77207268 in words is "seventy-seven million, two hundred seven thousand, two hundred sixty-eight".