2990947 has 4 divisors (see below), whose sum is σ = 3035656. Its totient is φ = 2946240.

The previous prime is 2990941. The next prime is 2990957. The reversal of 2990947 is 7490992.

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

It is a cyclic number.

It is not a de Polignac number, because 2990947 - 2¹¹ = 2988899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22254 + ... + 22387.

It is an arithmetic number, because the mean of its divisors is an integer number (758914).

2^2990947 is an apocalyptic number.

2990947 is a deficient number, since it is larger than the sum of its proper divisors (44709).

2990947 is an equidigital number, since it uses as much as digits as its factorization.

2990947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44708.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 2990947 is about 1729.4354570206. The cubic root of 2990947 is about 144.0797365752.

The spelling of 2990947 in words is "two million, nine hundred ninety thousand, nine hundred forty-seven".