12623890 has 16 divisors (see below), whose sum is σ = 23035608. Its totient is φ = 4980096.

The previous prime is 12623873. The next prime is 12623917. The reversal of 12623890 is 9832621.

It can be written as a sum of positive squares in 4 ways, for example, as 7134241 + 5489649 = 2671^2 + 2343^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7917 + ... + 9376.

Almost surely, 2^12623890 is an apocalyptic number.

12623890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12623890 is a deficient number, since it is larger than the sum of its proper divisors (10411718).

12623890 is a wasteful number, since it uses less digits than its factorization.

12623890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17373.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12623890 is about 3553.0113987996. The cubic root of 12623890 is about 232.8436510574.

The spelling of 12623890 in words is "twelve million, six hundred twenty-three thousand, eight hundred ninety".