12890355 has 16 divisors (see below), whose sum is σ = 21336480. Its totient is φ = 6637568.

The previous prime is 12890323. The next prime is 12890363. The reversal of 12890355 is 55309821.

12890355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12890355 - 2⁵ = 12890323 is a prime.

It is a super-2 number, since 2×12890355² = 332322504052050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14382 + ... + 15251.

It is an arithmetic number, because the mean of its divisors is an integer number (1333530).

Almost surely, 2^12890355 is an apocalyptic number.

12890355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12890355 is a deficient number, since it is larger than the sum of its proper divisors (8446125).

12890355 is a wasteful number, since it uses less digits than its factorization.

12890355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29670.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 12890355 is about 3590.3140531157. The cubic root of 12890355 is about 234.4705448673.

The spelling of 12890355 in words is "twelve million, eight hundred ninety thousand, three hundred fifty-five".