31426716 has 12 divisors (see below), whose sum is σ = 73329032. Its totient is φ = 10475568.

The previous prime is 31426709. The next prime is 31426729. The reversal of 31426716 is 61762413.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309435 + ... + 1309458.

Almost surely, 2^31426716 is an apocalyptic number.

It is an amenable number.

31426716 is an abundant number, since it is smaller than the sum of its proper divisors (41902316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31426716 is a wasteful number, since it uses less digits than its factorization.

31426716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618900 (or 2618898 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 31426716 is about 5605.9536209284. The cubic root of 31426716 is about 315.5728753709.

The spelling of 31426716 in words is "thirty-one million, four hundred twenty-six thousand, seven hundred sixteen".