31077013 has 8 divisors (see below), whose sum is σ = 33943680. Its totient is φ = 28217280.

The previous prime is 31076977. The next prime is 31077017.

31077013 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31077013 - 2²¹ = 28979861 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 (31077017) 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 7 ways as a sum of consecutive naturals, for example, 13533 + ... + 15661.

It is an arithmetic number, because the mean of its divisors is an integer number (4242960).

Almost surely, 2^31077013 is an apocalyptic number.

It is an amenable number.

31077013 is a deficient number, since it is larger than the sum of its proper divisors (2866667).

31077013 is a wasteful number, since it uses less digits than its factorization.

31077013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467.

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 31077013 is about 5574.6760443994. The cubic root of 31077013 is about 314.3979868361.

The spelling of 31077013 in words is "thirty-one million, seventy-seven thousand, thirteen".