31123796 has 12 divisors (see below), whose sum is σ = 59418240. Its totient is φ = 14147160.

The previous prime is 31123793. The next prime is 31123811. The reversal of 31123796 is 69732113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31123793) 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, 353636 + ... + 353723.

It is an arithmetic number, because the mean of its divisors is an integer number (4951520).

Almost surely, 2^31123796 is an apocalyptic number.

It is an amenable number.

31123796 is a deficient number, since it is larger than the sum of its proper divisors (28294444).

31123796 is a wasteful number, since it uses less digits than its factorization.

31123796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707374 (or 707372 counting only the distinct ones).

The product of its digits is 6804, while the sum is 32.

The square root of 31123796 is about 5578.8704950017. The cubic root of 31123796 is about 314.5556715157. Note that the first 3 decimals are identical.

The spelling of 31123796 in words is "thirty-one million, one hundred twenty-three thousand, seven hundred ninety-six".