12625998 has 32 divisors (see below), whose sum is σ = 31484160. Its totient is φ = 3279360.

The previous prime is 12625993. The next prime is 12625999. The reversal of 12625998 is 89952621.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12625993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13203 + ... + 14126.

It is an arithmetic number, because the mean of its divisors is an integer number (983880).

Almost surely, 2^12625998 is an apocalyptic number.

12625998 is an abundant number, since it is smaller than the sum of its proper divisors (18858162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12625998 is a wasteful number, since it uses less digits than its factorization.

12625998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27352.

The product of its digits is 77760, while the sum is 42.

The square root of 12625998 is about 3553.3080361826. The cubic root of 12625998 is about 232.8566108001.

It can be divided in two parts, 1262 and 5998, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 12625998 in words is "twelve million, six hundred twenty-five thousand, nine hundred ninety-eight".