30797439 has 16 divisors (see below), whose sum is σ = 41856000. Its totient is φ = 20138976.

The previous prime is 30797411. The next prime is 30797441. The reversal of 30797439 is 93479703.

It is not a de Polignac number, because 30797439 - 2⁷ = 30797311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30797439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30797339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46837 + ... + 47489.

It is an arithmetic number, because the mean of its divisors is an integer number (2616000).

Almost surely, 2^30797439 is an apocalyptic number.

30797439 is a deficient number, since it is larger than the sum of its proper divisors (11058561).

30797439 is a wasteful number, since it uses less digits than its factorization.

30797439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 30797439 is about 5549.5440353240. The cubic root of 30797439 is about 313.4523531800.

The spelling of 30797439 in words is "thirty million, seven hundred ninety-seven thousand, four hundred thirty-nine".