31086834 has 16 divisors (see below), whose sum is σ = 63497088. Its totient is φ = 10141712.

The previous prime is 31086833. The next prime is 31086877. The reversal of 31086834 is 43868013.

It is a junction number, because it is equal to n+sod(n) for n = 31086795 and 31086804.

It is not an unprimeable number, because it can be changed into a prime (31086833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54837 + ... + 55400.

It is an arithmetic number, because the mean of its divisors is an integer number (3968568).

Almost surely, 2^31086834 is an apocalyptic number.

31086834 is an abundant number, since it is smaller than the sum of its proper divisors (32410254).

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

31086834 is a wasteful number, since it uses less digits than its factorization.

31086834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110289.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 31086834 is about 5575.5568331782. The cubic root of 31086834 is about 314.4311021747.

The spelling of 31086834 in words is "thirty-one million, eighty-six thousand, eight hundred thirty-four".