2979651 has 4 divisors (see below), whose sum is σ = 3972872. Its totient is φ = 1986432.

The previous prime is 2979649. The next prime is 2979653. The reversal of 2979651 is 1569792.

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

It is an interprime number because it is at equal distance from previous prime (2979649) and next prime (2979653).

It is not a de Polignac number, because 2979651 - 2¹ = 2979649 is a prime.

It is a D-number.

It is a Duffinian number.

2979651 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2979653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496606 + ... + 496611.

It is an arithmetic number, because the mean of its divisors is an integer number (993218).

2^2979651 is an apocalyptic number.

2979651 is a deficient number, since it is larger than the sum of its proper divisors (993221).

2979651 is an equidigital number, since it uses as much as digits as its factorization.

2979651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993220.

The product of its digits is 34020, while the sum is 39.

The square root of 2979651 is about 1726.1665620675. The cubic root of 2979651 is about 143.8981243165.

The spelling of 2979651 in words is "two million, nine hundred seventy-nine thousand, six hundred fifty-one".