10997992 has 8 divisors (see below), whose sum is σ = 20621250. Its totient is φ = 5498992.

The previous prime is 10997969. The next prime is 10997999. The reversal of 10997992 is 29979901.

10997992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7257636 + 3740356 = 2694^2 + 1934^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10997999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687367 + ... + 687382.

Almost surely, 2^10997992 is an apocalyptic number.

It is an amenable number.

10997992 is a deficient number, since it is larger than the sum of its proper divisors (9623258).

10997992 is a wasteful number, since it uses less digits than its factorization.

10997992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374755 (or 1374751 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 46.

The square root of 10997992 is about 3316.3220591493. The cubic root of 10997992 is about 222.3844756515.

The spelling of 10997992 in words is "ten million, nine hundred ninety-seven thousand, nine hundred ninety-two".