31079901 has 4 divisors (see below), whose sum is σ = 41439872. Its totient is φ = 20719932.

The previous prime is 31079891. The next prime is 31079911. The reversal of 31079901 is 10997013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (31079891) and next prime (31079911).

It is not a de Polignac number, because 31079901 - 2⁶ = 31079837 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 (31079911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5179981 + ... + 5179986.

It is an arithmetic number, because the mean of its divisors is an integer number (10359968).

Almost surely, 2^31079901 is an apocalyptic number.

It is an amenable number.

31079901 is a deficient number, since it is larger than the sum of its proper divisors (10359971).

31079901 is a wasteful number, since it uses less digits than its factorization.

31079901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10359970.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 31079901 is about 5574.9350668864. The cubic root of 31079901 is about 314.4077255805.

The spelling of 31079901 in words is "thirty-one million, seventy-nine thousand, nine hundred one".