30712997 has 8 divisors (see below), whose sum is σ = 36049536. Its totient is φ = 25613712.

The previous prime is 30712963. The next prime is 30713017. The reversal of 30712997 is 79921703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30712997 - 2⁶ = 30712933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30712997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30712907) 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, 59033 + ... + 59550.

It is an arithmetic number, because the mean of its divisors is an integer number (4506192).

Almost surely, 2^30712997 is an apocalyptic number.

30712997 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

30712997 is a deficient number, since it is larger than the sum of its proper divisors (5336539).

30712997 is a wasteful number, since it uses less digits than its factorization.

30712997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118627.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 30712997 is about 5541.9308007228. The cubic root of 30712997 is about 313.1656110317.

The spelling of 30712997 in words is "thirty million, seven hundred twelve thousand, nine hundred ninety-seven".