2079621 has 8 divisors (see below), whose sum is σ = 3080960. Its totient is φ = 1386396.

The previous prime is 2079617. The next prime is 2079629. The reversal of 2079621 is 1269702.

It is not a de Polignac number, because 2079621 - 2² = 2079617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 77023 = 2079621 / (2 + 0 + 7 + 9 + 6 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2079629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38485 + ... + 38538.

It is an arithmetic number, because the mean of its divisors is an integer number (385120).

2^2079621 is an apocalyptic number.

It is an amenable number.

2079621 is a deficient number, since it is larger than the sum of its proper divisors (1001339).

2079621 is an equidigital number, since it uses as much as digits as its factorization.

2079621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77032 (or 77026 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2079621 is about 1442.0891095907. The cubic root of 2079621 is about 127.6423324001.

The spelling of 2079621 in words is "two million, seventy-nine thousand, six hundred twenty-one".