2396021 has 4 divisors (see below), whose sum is σ = 2473344. Its totient is φ = 2318700.

The previous prime is 2395973. The next prime is 2396029. The reversal of 2396021 is 1206932.

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-2396021 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 (2396029) 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, 38615 + ... + 38676.

It is an arithmetic number, because the mean of its divisors is an integer number (618336).

2^2396021 is an apocalyptic number.

It is an amenable number.

2396021 is a deficient number, since it is larger than the sum of its proper divisors (77323).

2396021 is an equidigital number, since it uses as much as digits as its factorization.

2396021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77322.

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

The square root of 2396021 is about 1547.9085890323. The cubic root of 2396021 is about 133.8125581521.

The spelling of 2396021 in words is "two million, three hundred ninety-six thousand, twenty-one".