30790949 has 4 divisors (see below), whose sum is σ = 35189664. Its totient is φ = 26392236.

The previous prime is 30790943. The next prime is 30790957. The reversal of 30790949 is 94909703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30790949 - 2⁸ = 30790693 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 (30790943) 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, 2199347 + ... + 2199360.

It is an arithmetic number, because the mean of its divisors is an integer number (8797416).

Almost surely, 2^30790949 is an apocalyptic number.

It is an amenable number.

30790949 is a deficient number, since it is larger than the sum of its proper divisors (4398715).

30790949 is an equidigital number, since it uses as much as digits as its factorization.

30790949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398714.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 30790949 is about 5548.9592717914. The cubic root of 30790949 is about 313.4303335061.

The spelling of 30790949 in words is "thirty million, seven hundred ninety thousand, nine hundred forty-nine".