7995021 has 4 divisors (see below), whose sum is σ = 10660032. Its totient is φ = 5330012.

The previous prime is 7995017. The next prime is 7995023. The reversal of 7995021 is 1205997.

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 not a de Polignac number, because 7995021 - 2² = 7995017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7995023) 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, 1332501 + ... + 1332506.

It is an arithmetic number, because the mean of its divisors is an integer number (2665008).

Almost surely, 2^7995021 is an apocalyptic number.

It is an amenable number.

7995021 is a deficient number, since it is larger than the sum of its proper divisors (2665011).

7995021 is a wasteful number, since it uses less digits than its factorization.

7995021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665010.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 7995021 is about 2827.5468165885. The cubic root of 7995021 is about 199.9584997226.

The spelling of 7995021 in words is "seven million, nine hundred ninety-five thousand, twenty-one".