25970839 has 8 divisors (see below), whose sum is σ = 27433472. Its totient is φ = 24547320.

The previous prime is 25970831. The next prime is 25970851. The reversal of 25970839 is 93807952.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25970839 - 2³ = 25970831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25970795 and 25970804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25970831) 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 7 ways as a sum of consecutive naturals, for example, 8409 + ... + 11074.

It is an arithmetic number, because the mean of its divisors is an integer number (3429184).

Almost surely, 2^25970839 is an apocalyptic number.

25970839 is a deficient number, since it is larger than the sum of its proper divisors (1462633).

25970839 is a wasteful number, since it uses less digits than its factorization.

25970839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19557.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 25970839 is about 5096.1592400552. The cubic root of 25970839 is about 296.1388098338.

The spelling of 25970839 in words is "twenty-five million, nine hundred seventy thousand, eight hundred thirty-nine".