12620854 has 4 divisors (see below), whose sum is σ = 18931284. Its totient is φ = 6310426.

The previous prime is 12620843. The next prime is 12620891. The reversal of 12620854 is 45802621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45802621 = 401 ⋅114221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3155212 + ... + 3155215.

It is an arithmetic number, because the mean of its divisors is an integer number (4732821).

Almost surely, 2^12620854 is an apocalyptic number.

12620854 is a deficient number, since it is larger than the sum of its proper divisors (6310430).

12620854 is an equidigital number, since it uses as much as digits as its factorization.

12620854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310429.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 12620854 is about 3552.5841298976. The cubic root of 12620854 is about 232.8249835415.

The spelling of 12620854 in words is "twelve million, six hundred twenty thousand, eight hundred fifty-four".