12577887 has 24 divisors (see below), whose sum is σ = 21250944. Its totient is φ = 7018704.

The previous prime is 12577879. The next prime is 12577889. The reversal of 12577887 is 78877521.

It is not a de Polignac number, because 12577887 - 2³ = 12577879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12577889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (885456).

Almost surely, 2^12577887 is an apocalyptic number.

12577887 is a deficient number, since it is larger than the sum of its proper divisors (8673057).

12577887 is a wasteful number, since it uses less digits than its factorization.

12577887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699 (or 4696 counting only the distinct ones).

The product of its digits is 219520, while the sum is 45.

The square root of 12577887 is about 3546.5316860279. The cubic root of 12577887 is about 232.5604698766.

The spelling of 12577887 in words is "twelve million, five hundred seventy-seven thousand, eight hundred eighty-seven".