30629913 has 4 divisors (see below), whose sum is σ = 40839888. Its totient is φ = 20419940.

The previous prime is 30629873. The next prime is 30629917. The reversal of 30629913 is 31992603.

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 30629913 - 2⁸ = 30629657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30629917) 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 3 ways as a sum of consecutive naturals, for example, 5104983 + ... + 5104988.

It is an arithmetic number, because the mean of its divisors is an integer number (10209972).

Almost surely, 2^30629913 is an apocalyptic number.

It is an amenable number.

30629913 is a deficient number, since it is larger than the sum of its proper divisors (10209975).

30629913 is a wasteful number, since it uses less digits than its factorization.

30629913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10209974.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 30629913 is about 5534.4297809259. The cubic root of 30629913 is about 312.8829668580.

The spelling of 30629913 in words is "thirty million, six hundred twenty-nine thousand, nine hundred thirteen".