30977933 has 8 divisors (see below), whose sum is σ = 35717568. Its totient is φ = 26316864.

The previous prime is 30977929. The next prime is 30977951. The reversal of 30977933 is 33977903.

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

It is not a de Polignac number, because 30977933 - 2² = 30977929 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30977953) 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, 18791 + ... + 20372.

It is an arithmetic number, because the mean of its divisors is an integer number (4464696).

Almost surely, 2^30977933 is an apocalyptic number.

It is an amenable number.

30977933 is a deficient number, since it is larger than the sum of its proper divisors (4739635).

30977933 is a wasteful number, since it uses less digits than its factorization.

30977933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39283.

The product of its (nonzero) digits is 107163, while the sum is 41.

The square root of 30977933 is about 5565.7823349463. The cubic root of 30977933 is about 314.0635090007.

The spelling of 30977933 in words is "thirty million, nine hundred seventy-seven thousand, nine hundred thirty-three".