13773992 has 8 divisors (see below), whose sum is σ = 25826250. Its totient is φ = 6886992.

The previous prime is 13773979. The next prime is 13774001. The reversal of 13773992 is 29937731.

It can be written as a sum of positive squares in only one way, i.e., 11383876 + 2390116 = 3374^2 + 1546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860867 + ... + 860882.

Almost surely, 2^13773992 is an apocalyptic number.

It is an amenable number.

13773992 is a deficient number, since it is larger than the sum of its proper divisors (12052258).

13773992 is a wasteful number, since it uses less digits than its factorization.

13773992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721755 (or 1721751 counting only the distinct ones).

The product of its digits is 71442, while the sum is 41.

The square root of 13773992 is about 3711.3329141967. The cubic root of 13773992 is about 239.7102521851.

The spelling of 13773992 in words is "thirteen million, seven hundred seventy-three thousand, nine hundred ninety-two".