12677540 has 12 divisors (see below), whose sum is σ = 26622876. Its totient is φ = 5071008.

The previous prime is 12677537. The next prime is 12677557. The reversal of 12677540 is 4577621.

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 6041764 = 2576^2 + 2458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12677497 and 12677506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316919 + ... + 316958.

It is an arithmetic number, because the mean of its divisors is an integer number (2218573).

Almost surely, 2^12677540 is an apocalyptic number.

12677540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12677540 is an abundant number, since it is smaller than the sum of its proper divisors (13945336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12677540 is a wasteful number, since it uses less digits than its factorization.

12677540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633886 (or 633884 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 12677540 is about 3560.5533277849. The cubic root of 12677540 is about 233.1730372969.

The spelling of 12677540 in words is "twelve million, six hundred seventy-seven thousand, five hundred forty".