23699475 has 18 divisors (see below), whose sum is σ = 42448796. Its totient is φ = 12639600.

The previous prime is 23699461. The next prime is 23699477. The reversal of 23699475 is 57499632.

It is a happy number.

It is not a de Polignac number, because 23699475 - 2¹⁷ = 23568403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23699475.

It is not an unprimeable number, because it can be changed into a prime (23699477) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52441 + ... + 52890.

Almost surely, 2^23699475 is an apocalyptic number.

23699475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23699475 is a deficient number, since it is larger than the sum of its proper divisors (18749321).

23699475 is a wasteful number, since it uses less digits than its factorization.

23699475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105347 (or 105339 counting only the distinct ones).

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

The square root of 23699475 is about 4868.2106569046. The cubic root of 23699475 is about 287.2408755313.

The spelling of 23699475 in words is "twenty-three million, six hundred ninety-nine thousand, four hundred seventy-five".