23690365 has 4 divisors (see below), whose sum is σ = 28428444. Its totient is φ = 18952288.

The previous prime is 23690351. The next prime is 23690371. The reversal of 23690365 is 56309632.

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 12089529 + 11600836 = 3477^2 + 3406^2 .

It is a cyclic number.

It is not a de Polignac number, because 23690365 - 2⁷ = 23690237 is a prime.

It is a super-2 number, since 2×23690365² = 1122466787666450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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 23690365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369032 + ... + 2369041.

It is an arithmetic number, because the mean of its divisors is an integer number (7107111).

Almost surely, 2^23690365 is an apocalyptic number.

It is an amenable number.

23690365 is a deficient number, since it is larger than the sum of its proper divisors (4738079).

23690365 is an equidigital number, since it uses as much as digits as its factorization.

23690365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738078.

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 23690365 is about 4867.2749049134. The cubic root of 23690365 is about 287.2040659995.

Adding to 23690365 its reverse (56309632), we get a palindrome (79999997).

It can be divided in two parts, 236 and 90365, that added together give a square (90601 = 301²).

The spelling of 23690365 in words is "twenty-three million, six hundred ninety thousand, three hundred sixty-five".