12720892 has 6 divisors (see below), whose sum is σ = 22261568. Its totient is φ = 6360444.

The previous prime is 12720889. The next prime is 12720941. The reversal of 12720892 is 29802721.

12720892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1590108 + ... + 1590115.

Almost surely, 2^12720892 is an apocalyptic number.

It is an amenable number.

12720892 is a deficient number, since it is larger than the sum of its proper divisors (9540676).

12720892 is a wasteful number, since it uses less digits than its factorization.

12720892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180227 (or 3180225 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12720892 is about 3566.6359500235. The cubic root of 12720892 is about 233.4385203748.

The spelling of 12720892 in words is "twelve million, seven hundred twenty thousand, eight hundred ninety-two".