2990641 has 4 divisors (see below), whose sum is σ = 2995300. Its totient is φ = 2985984.

The previous prime is 2990639. The next prime is 2990677. The reversal of 2990641 is 1460992.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1679616 + 1311025 = 1296^2 + 1145^2 .

It is a 6-Lehmer number, since φ(2990641) divides (2990641-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 2990641 - 2¹ = 2990639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990041) 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, 1176 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (748825).

2^2990641 is an apocalyptic number.

It is an amenable number.

2990641 is a deficient number, since it is larger than the sum of its proper divisors (4659).

2990641 is an equidigital number, since it uses as much as digits as its factorization.

2990641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2990641 is about 1729.3469865819. The cubic root of 2990641 is about 144.0748228692.

The spelling of 2990641 in words is "two million, nine hundred ninety thousand, six hundred forty-one".