30745297 has 4 divisors (see below), whose sum is σ = 33540336. Its totient is φ = 27950260.

The previous prime is 30745289. The next prime is 30745327. The reversal of 30745297 is 79254703.

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 30745297 - 2³ = 30745289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30745207) 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, 1397503 + ... + 1397524.

It is an arithmetic number, because the mean of its divisors is an integer number (8385084).

Almost surely, 2^30745297 is an apocalyptic number.

It is an amenable number.

30745297 is a deficient number, since it is larger than the sum of its proper divisors (2795039).

30745297 is a wasteful number, since it uses less digits than its factorization.

30745297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795038.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 30745297 is about 5544.8441817602. The cubic root of 30745297 is about 313.2753550741.

The spelling of 30745297 in words is "thirty million, seven hundred forty-five thousand, two hundred ninety-seven".