2990647 has 8 divisors (see below), whose sum is σ = 3316752. Its totient is φ = 2673600.

The previous prime is 2990639. The next prime is 2990677. The reversal of 2990647 is 7460992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2990647 - 2³ = 2990639 is a prime.

It is a Duffinian number.

2990647 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (414594).

2^2990647 is an apocalyptic number.

2990647 is a deficient number, since it is larger than the sum of its proper divisors (326105).

2990647 is a wasteful number, since it uses less digits than its factorization.

2990647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2990647 is about 1729.3487213399. The cubic root of 2990647 is about 144.0749192196.

The spelling of 2990647 in words is "two million, nine hundred ninety thousand, six hundred forty-seven".