2993621 has 4 divisors (see below), whose sum is σ = 3151200. Its totient is φ = 2836044.

The previous prime is 2993609. The next prime is 2993629. The reversal of 2993621 is 1263992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2993621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2993629) 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, 78761 + ... + 78798.

It is an arithmetic number, because the mean of its divisors is an integer number (787800).

2^2993621 is an apocalyptic number.

It is an amenable number.

2993621 is a deficient number, since it is larger than the sum of its proper divisors (157579).

2993621 is a wasteful number, since it uses less digits than its factorization.

2993621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157578.

The product of its digits is 5832, while the sum is 32.

The square root of 2993621 is about 1730.2083689544. The cubic root of 2993621 is about 144.1226610468.

The spelling of 2993621 in words is "two million, nine hundred ninety-three thousand, six hundred twenty-one".