2979690 has 48 divisors (see below), whose sum is σ = 8322912. Its totient is φ = 680736.

The previous prime is 2979679. The next prime is 2979701. The reversal of 2979690 is 969792.

It is an interprime number because it is at equal distance from previous prime (2979679) and next prime (2979701).

It is a super-2 number, since 2×2979690² = 17757104992200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (173394).

2^2979690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2979690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4161456).

2979690 is an abundant number, since it is smaller than the sum of its proper divisors (5343222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2979690 is a wasteful number, since it uses less digits than its factorization.

2979690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 2979690 is about 1726.1778587388. The cubic root of 2979690 is about 143.8987521307.

The spelling of 2979690 in words is "two million, nine hundred seventy-nine thousand, six hundred ninety".