30392397 has 18 divisors (see below), whose sum is σ = 51068238. Its totient is φ = 17366832.

The previous prime is 30392363. The next prime is 30392399. The reversal of 30392397 is 79329303.

It can be written as a sum of positive squares in only one way, i.e., 24147396 + 6245001 = 4914^2 + 2499^2 .

It is not a de Polignac number, because 30392397 - 2⁶ = 30392333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30392399) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 34018 + ... + 34899.

Almost surely, 2^30392397 is an apocalyptic number.

It is an amenable number.

30392397 is a deficient number, since it is larger than the sum of its proper divisors (20675841).

30392397 is a wasteful number, since it uses less digits than its factorization.

30392397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68937 (or 68927 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 36.

The square root of 30392397 is about 5512.9299832303. The cubic root of 30392397 is about 312.0721295267.

The spelling of 30392397 in words is "thirty million, three hundred ninety-two thousand, three hundred ninety-seven".