30973696 has 72 divisors (see below), whose sum is σ = 68506704. Its totient is φ = 13885440.

The previous prime is 30973693. The next prime is 30973697. The reversal of 30973696 is 69637903.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30973693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136335 + ... + 136561.

It is an arithmetic number, because the mean of its divisors is an integer number (951482).

Almost surely, 2^30973696 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 30973696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34253352).

30973696 is an abundant number, since it is smaller than the sum of its proper divisors (37533008).

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

30973696 is a wasteful number, since it uses less digits than its factorization.

30973696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 43.

The square root of 30973696 is about 5565.4016926005. The cubic root of 30973696 is about 314.0491896919.

The spelling of 30973696 in words is "thirty million, nine hundred seventy-three thousand, six hundred ninety-six".