31077234 has 12 divisors (see below), whose sum is σ = 67334046. Its totient is φ = 10359072.

The previous prime is 31077229. The next prime is 31077251. The reversal of 31077234 is 43277013.

It can be written as a sum of positive squares in only one way, i.e., 30769209 + 308025 = 5547^2 + 555^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31077198 and 31077207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 863239 + ... + 863274.

Almost surely, 2^31077234 is an apocalyptic number.

31077234 is an abundant number, since it is smaller than the sum of its proper divisors (36256812).

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

31077234 is a wasteful number, since it uses less digits than its factorization.

31077234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726521 (or 1726518 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 31077234 is about 5574.6958661437. The cubic root of 31077234 is about 314.3987321006.

The spelling of 31077234 in words is "thirty-one million, seventy-seven thousand, two hundred thirty-four".