77416031 has 12 divisors (see below), whose sum is σ = 98242920. Its totient is φ = 60323760.

The previous prime is 77416019. The next prime is 77416033. The reversal of 77416031 is 13061477.

It is a de Polignac number, because none of the positive numbers 2^k-77416031 is a prime.

It is a super-2 number, since 2×77416031² = 11986483711585922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77415985 and 77416003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77416033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71276 + ... + 72353.

It is an arithmetic number, because the mean of its divisors is an integer number (8186910).

Almost surely, 2^77416031 is an apocalyptic number.

77416031 is a deficient number, since it is larger than the sum of its proper divisors (20826889).

77416031 is a wasteful number, since it uses less digits than its factorization.

77416031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143654 (or 143647 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 77416031 is about 8798.6380196028. The cubic root of 77416031 is about 426.1969138946.

The spelling of 77416031 in words is "seventy-seven million, four hundred sixteen thousand, thirty-one".