31164896 has 36 divisors (see below), whose sum is σ = 70309512. Its totient is φ = 13320576.

The previous prime is 31164877. The next prime is 31164899. The reversal of 31164896 is 69846113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31164899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83366 + ... + 83738.

It is an arithmetic number, because the mean of its divisors is an integer number (1953042).

Almost surely, 2^31164896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31164896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35154756).

31164896 is an abundant number, since it is smaller than the sum of its proper divisors (39144616).

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

31164896 is an frugal number, since it uses more digits than its factorization.

31164896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 382 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 31164896 is about 5582.5528210667. The cubic root of 31164896 is about 314.6940709958.

The spelling of 31164896 in words is "thirty-one million, one hundred sixty-four thousand, eight hundred ninety-six".