30676645 has 4 divisors (see below), whose sum is σ = 36811980. Its totient is φ = 24541312.

The previous prime is 30676631. The next prime is 30676661. The reversal of 30676645 is 54667603.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23097636 + 7579009 = 4806^2 + 2753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30676645 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3067660 + ... + 3067669.

It is an arithmetic number, because the mean of its divisors is an integer number (9202995).

Almost surely, 2^30676645 is an apocalyptic number.

It is an amenable number.

30676645 is a deficient number, since it is larger than the sum of its proper divisors (6135335).

30676645 is an equidigital number, since it uses as much as digits as its factorization.

30676645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135334.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 30676645 is about 5538.6501062985. The cubic root of 30676645 is about 313.0420076518.

The spelling of 30676645 in words is "thirty million, six hundred seventy-six thousand, six hundred forty-five".