2930621 has 4 divisors (see below), whose sum is σ = 2934492. Its totient is φ = 2926752.

The previous prime is 2930593. The next prime is 2930633. The reversal of 2930621 is 1260392.

2930621 = 1210² + 1211².

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1464100 + 1466521 = 1210^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2930621 - 2¹⁴ = 2914237 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 (2930651) 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, 386 + ... + 2451.

It is an arithmetic number, because the mean of its divisors is an integer number (733623).

2^2930621 is an apocalyptic number.

2930621 is the 1211-st centered square number.

It is an amenable number.

2930621 is a deficient number, since it is larger than the sum of its proper divisors (3871).

2930621 is a wasteful number, since it uses less digits than its factorization.

2930621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2930621 is about 1711.9056632887. The cubic root of 2930621 is about 143.1044764403.

The spelling of 2930621 in words is "two million, nine hundred thirty thousand, six hundred twenty-one".