23003690 has 16 divisors (see below), whose sum is σ = 41620392. Its totient is φ = 9153984.

The previous prime is 23003689. The next prime is 23003719. The reversal of 23003690 is 9630032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22934521 + 69169 = 4789^2 + 263^2 .

It is a super-2 number, since 2×23003690² = 1058339507232200, which contains 22 as substring.

23003690 is a modest number, since divided by 3690 gives 230 as remainder.

It is an unprimeable number.

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, 3869 + ... + 7808.

Almost surely, 2^23003690 is an apocalyptic number.

23003690 is a deficient number, since it is larger than the sum of its proper divisors (18616702).

23003690 is a wasteful number, since it uses less digits than its factorization.

23003690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11881.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 23003690 is about 4796.2162169777. The cubic root of 23003690 is about 284.4019056779.

The spelling of 23003690 in words is "twenty-three million, three thousand, six hundred ninety".