30734931 has 4 divisors (see below), whose sum is σ = 40979912. Its totient is φ = 20489952.

The previous prime is 30734927. The next prime is 30734933. The reversal of 30734931 is 13943703.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30734931 - 2² = 30734927 is a prime.

It is a super-2 number, since 2×30734931² = 1889271967149522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30734933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122486 + ... + 5122491.

It is an arithmetic number, because the mean of its divisors is an integer number (10244978).

Almost surely, 2^30734931 is an apocalyptic number.

30734931 is a deficient number, since it is larger than the sum of its proper divisors (10244981).

30734931 is a wasteful number, since it uses less digits than its factorization.

30734931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10244980.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 30734931 is about 5543.9093607309. The cubic root of 30734931 is about 313.2401434300.

The spelling of 30734931 in words is "thirty million, seven hundred thirty-four thousand, nine hundred thirty-one".