25346979 has 32 divisors (see below), whose sum is σ = 43975680. Its totient is φ = 14126400.

The previous prime is 25346963. The next prime is 25347013. The reversal of 25346979 is 97964352.

It is a happy number.

It is not a de Polignac number, because 25346979 - 2⁴ = 25346963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25306979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6114 + ... + 9384.

It is an arithmetic number, because the mean of its divisors is an integer number (1374240).

Almost surely, 2^25346979 is an apocalyptic number.

25346979 is a deficient number, since it is larger than the sum of its proper divisors (18628701).

25346979 is a wasteful number, since it uses less digits than its factorization.

25346979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328 (or 3322 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 25346979 is about 5034.5783338826. The cubic root of 25346979 is about 293.7483268956.

The spelling of 25346979 in words is "twenty-five million, three hundred forty-six thousand, nine hundred seventy-nine".