2656994 has 4 divisors (see below), whose sum is σ = 3985494. Its totient is φ = 1328496.

The previous prime is 2656993. The next prime is 2657003. The reversal of 2656994 is 4996562.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2601769 + 55225 = 1613^2 + 235^2 .

It is not an unprimeable number, because it can be changed into a prime (2656991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664247 + ... + 664250.

2^2656994 is an apocalyptic number.

2656994 is a deficient number, since it is larger than the sum of its proper divisors (1328500).

2656994 is a wasteful number, since it uses less digits than its factorization.

2656994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328499.

The product of its digits is 116640, while the sum is 41.

The square root of 2656994 is about 1630.0288341008. The cubic root of 2656994 is about 138.5043854259.

The spelling of 2656994 in words is "two million, six hundred fifty-six thousand, nine hundred ninety-four".