31096730 has 64 divisors (see below), whose sum is σ = 68290560. Its totient is φ = 9958464.

The previous prime is 31096727. The next prime is 31096733. The reversal of 31096730 is 3769013.

It is an interprime number because it is at equal distance from previous prime (31096727) and next prime (31096733).

It is a junction number, because it is equal to n+sod(n) for n = 31096693 and 31096702.

It is not an unprimeable number, because it can be changed into a prime (31096733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136877 + ... + 137103.

It is an arithmetic number, because the mean of its divisors is an integer number (1067040).

Almost surely, 2^31096730 is an apocalyptic number.

31096730 is an abundant number, since it is smaller than the sum of its proper divisors (37193830).

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

31096730 is a wasteful number, since it uses less digits than its factorization.

31096730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 31096730 is about 5576.4442075574. Note that the first 3 decimals coincide. The cubic root of 31096730 is about 314.4644633512.

The spelling of 31096730 in words is "thirty-one million, ninety-six thousand, seven hundred thirty".