30997295 has 16 divisors (see below), whose sum is σ = 42788928. Its totient is φ = 21116160.

The previous prime is 30997289. The next prime is 30997297. The reversal of 30997295 is 59279903.

It is not a de Polignac number, because 30997295 - 2¹⁰ = 30996271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30997297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2675 + ... + 8315.

It is an arithmetic number, because the mean of its divisors is an integer number (2674308).

Almost surely, 2^30997295 is an apocalyptic number.

30997295 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30997295 is a deficient number, since it is larger than the sum of its proper divisors (11791633).

30997295 is a wasteful number, since it uses less digits than its factorization.

30997295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5810.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 30997295 is about 5567.5214413597. The cubic root of 30997295 is about 314.1289279468.

The spelling of 30997295 in words is "thirty million, nine hundred ninety-seven thousand, two hundred ninety-five".