2657992 has 16 divisors (see below), whose sum is σ = 5045040. Its totient is φ = 1312656.

The previous prime is 2657951. The next prime is 2657999. The reversal of 2657992 is 2997562.

It is a happy number.

2657992 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2⁹ + 6⁶ + 5⁹ + 7⁶ + 9⁴ + 9⁶ + 2¹¹ .

It is not an unprimeable number, because it can be changed into a prime (2657999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338 + ... + 2665.

It is an arithmetic number, because the mean of its divisors is an integer number (315315).

2^2657992 is an apocalyptic number.

It is an amenable number.

2657992 is a deficient number, since it is larger than the sum of its proper divisors (2387048).

2657992 is a wasteful number, since it uses less digits than its factorization.

2657992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092 (or 4088 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 2657992 is about 1630.3349349137. The cubic root of 2657992 is about 138.5217245786.

The spelling of 2657992 in words is "two million, six hundred fifty-seven thousand, nine hundred ninety-two".