31412893 has 4 divisors (see below), whose sum is σ = 31508128. Its totient is φ = 31317660.

The previous prime is 31412879. The next prime is 31412897. The reversal of 31412893 is 39821413.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39821413 = 787 ⋅50599.

It is a cyclic number.

It is not a de Polignac number, because 31412893 - 2⁵ = 31412861 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 (31412897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47121 + ... + 47782.

It is an arithmetic number, because the mean of its divisors is an integer number (7877032).

Almost surely, 2^31412893 is an apocalyptic number.

It is an amenable number.

31412893 is a deficient number, since it is larger than the sum of its proper divisors (95235).

31412893 is an equidigital number, since it uses as much as digits as its factorization.

31412893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95234.

The product of its digits is 5184, while the sum is 31.

The square root of 31412893 is about 5604.7205996374. The cubic root of 31412893 is about 315.5266004799.

The spelling of 31412893 in words is "thirty-one million, four hundred twelve thousand, eight hundred ninety-three".