30664793 has 4 divisors (see below), whose sum is σ = 31243428. Its totient is φ = 30086160.

The previous prime is 30664789. The next prime is 30664801. The reversal of 30664793 is 39746603.

It is a happy number.

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 27175369 + 3489424 = 5213^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 30664793 - 2² = 30664789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30664783) 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, 289238 + ... + 289343.

It is an arithmetic number, because the mean of its divisors is an integer number (7810857).

Almost surely, 2^30664793 is an apocalyptic number.

It is an amenable number.

30664793 is a deficient number, since it is larger than the sum of its proper divisors (578635).

30664793 is an equidigital number, since it uses as much as digits as its factorization.

30664793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578634.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 30664793 is about 5537.5800671412. The cubic root of 30664793 is about 313.0016875996.

The spelling of 30664793 in words is "thirty million, six hundred sixty-four thousand, seven hundred ninety-three".