12549977 has 8 divisors (see below), whose sum is σ = 14025312. Its totient is φ = 11130400.

The previous prime is 12549913. The next prime is 12550001. The reversal of 12549977 is 77994521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12549977 - 2⁶ = 12549913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12549907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13463 + ... + 14364.

It is an arithmetic number, because the mean of its divisors is an integer number (1753164).

Almost surely, 2^12549977 is an apocalyptic number.

It is an amenable number.

12549977 is a deficient number, since it is larger than the sum of its proper divisors (1475335).

12549977 is a wasteful number, since it uses less digits than its factorization.

12549977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27879.

The product of its digits is 158760, while the sum is 44.

The square root of 12549977 is about 3542.5946705769. The cubic root of 12549977 is about 232.3883273011.

The spelling of 12549977 in words is "twelve million, five hundred forty-nine thousand, nine hundred seventy-seven".