77464860 has 48 divisors (see below), whose sum is σ = 236621952. Its totient is φ = 18779200.

The previous prime is 77464847. The next prime is 77464873. The reversal of 77464860 is 6846477.

It is an interprime number because it is at equal distance from previous prime (77464847) and next prime (77464873).

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 15 ways as a sum of consecutive naturals, for example, 58026 + ... + 59345.

It is an arithmetic number, because the mean of its divisors is an integer number (4929624).

Almost surely, 2^77464860 is an apocalyptic number.

It is an amenable number.

77464860 is an abundant number, since it is smaller than the sum of its proper divisors (159157092).

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

77464860 is a wasteful number, since it uses less digits than its factorization.

77464860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117394 (or 117392 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 77464860 is about 8801.4123866570. The cubic root of 77464860 is about 426.2865008316.

The spelling of 77464860 in words is "seventy-seven million, four hundred sixty-four thousand, eight hundred sixty".