23979485 has 4 divisors (see below), whose sum is σ = 28775388. Its totient is φ = 19183584.

The previous prime is 23979457. The next prime is 23979493. The reversal of 23979485 is 58497932.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2948089 + 21031396 = 1717^2 + 4586^2 .

It is a cyclic number.

It is not a de Polignac number, because 23979485 - 2⁶ = 23979421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2397944 + ... + 2397953.

It is an arithmetic number, because the mean of its divisors is an integer number (7193847).

Almost surely, 2^23979485 is an apocalyptic number.

It is an amenable number.

23979485 is a deficient number, since it is larger than the sum of its proper divisors (4795903).

23979485 is an equidigital number, since it uses as much as digits as its factorization.

23979485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795902.

The product of its digits is 544320, while the sum is 47.

The square root of 23979485 is about 4896.8852345139. The cubic root of 23979485 is about 288.3677024382.

The spelling of 23979485 in words is "twenty-three million, nine hundred seventy-nine thousand, four hundred eighty-five".