12622887 has 6 divisors (see below), whose sum is σ = 18233072. Its totient is φ = 8415252.

The previous prime is 12622871. The next prime is 12622903. The reversal of 12622887 is 78822621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12622871) and next prime (12622903).

It is not a de Polignac number, because 12622887 - 2⁴ = 12622871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12622807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701263 + ... + 701280.

Almost surely, 2^12622887 is an apocalyptic number.

12622887 is a deficient number, since it is larger than the sum of its proper divisors (5610185).

12622887 is a wasteful number, since it uses less digits than its factorization.

12622887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402549 (or 1402546 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 12622887 is about 3552.8702481233. The cubic root of 12622887 is about 232.8374842217.

The spelling of 12622887 in words is "twelve million, six hundred twenty-two thousand, eight hundred eighty-seven".