30697265 has 4 divisors (see below), whose sum is σ = 36836724. Its totient is φ = 24557808.

The previous prime is 30697253. The next prime is 30697273. The reversal of 30697265 is 56279603.

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 7203856 + 23493409 = 2684^2 + 4847^2 .

It is a cyclic number.

It is not a de Polignac number, because 30697265 - 2¹⁰ = 30696241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3069722 + ... + 3069731.

It is an arithmetic number, because the mean of its divisors is an integer number (9209181).

Almost surely, 2^30697265 is an apocalyptic number.

It is an amenable number.

30697265 is a deficient number, since it is larger than the sum of its proper divisors (6139459).

30697265 is an equidigital number, since it uses as much as digits as its factorization.

30697265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6139458.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 30697265 is about 5540.5112579978. The cubic root of 30697265 is about 313.1121313617.

The spelling of 30697265 in words is "thirty million, six hundred ninety-seven thousand, two hundred sixty-five".