76860477 has 6 divisors (see below), whose sum is σ = 111020702. Its totient is φ = 51240312.

The previous prime is 76860473. The next prime is 76860521. The reversal of 76860477 is 77406867.

It can be written as a sum of positive squares in only one way, i.e., 72488196 + 4372281 = 8514^2 + 2091^2 .

It is not a de Polignac number, because 76860477 - 2² = 76860473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76860473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4270018 + ... + 4270035.

Almost surely, 2^76860477 is an apocalyptic number.

It is an amenable number.

76860477 is a deficient number, since it is larger than the sum of its proper divisors (34160225).

76860477 is a wasteful number, since it uses less digits than its factorization.

76860477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8540059 (or 8540056 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 76860477 is about 8767.0107220192. The cubic root of 76860477 is about 425.1749720143.

The spelling of 76860477 in words is "seventy-six million, eight hundred sixty thousand, four hundred seventy-seven".