12838977 has 6 divisors (see below), whose sum is σ = 18545202. Its totient is φ = 8559312.

The previous prime is 12838951. The next prime is 12838979. The reversal of 12838977 is 77983821.

It can be written as a sum of positive squares in only one way, i.e., 12173121 + 665856 = 3489^2 + 816^2 .

It is not a de Polignac number, because 12838977 - 2⁶ = 12838913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12838979) 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, 713268 + ... + 713285.

It is an arithmetic number, because the mean of its divisors is an integer number (3090867).

Almost surely, 2^12838977 is an apocalyptic number.

It is an amenable number.

12838977 is a deficient number, since it is larger than the sum of its proper divisors (5706225).

12838977 is a wasteful number, since it uses less digits than its factorization.

12838977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426559 (or 1426556 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 12838977 is about 3583.1518248603. The cubic root of 12838977 is about 234.1586147919.

The spelling of 12838977 in words is "twelve million, eight hundred thirty-eight thousand, nine hundred seventy-seven".