2979623 has 2 divisors, whose sum is σ = 2979624. Its totient is φ = 2979622.

The previous prime is 2979619. The next prime is 2979649. The reversal of 2979623 is 3269792.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2979623 - 2² = 2979619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2979653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489811 + 1489812.

It is an arithmetic number, because the mean of its divisors is an integer number (1489812).

2^2979623 is an apocalyptic number.

2979623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2979623 is an equidigital number, since it uses as much as digits as its factorization.

2979623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 2979623 is about 1726.1584515913. The cubic root of 2979623 is about 143.8976735746.

The spelling of 2979623 in words is "two million, nine hundred seventy-nine thousand, six hundred twenty-three".