7900223021 has 8 divisors (see below), whose sum is σ = 7951149024. Its totient is φ = 7849377360.

The previous prime is 7900223003. The next prime is 7900223029. The reversal of 7900223021 is 1203220097.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7900223021 - 2¹⁴ = 7900206637 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 (7900223029) 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, 183830 + ... + 222696.

It is an arithmetic number, because the mean of its divisors is an integer number (993893628).

Almost surely, 2^7900223021 is an apocalyptic number.

It is an amenable number.

7900223021 is a deficient number, since it is larger than the sum of its proper divisors (50926003).

7900223021 is a wasteful number, since it uses less digits than its factorization.

7900223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40171.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 7900223021 is about 88883.1987554453. The cubic root of 7900223021 is about 1991.6504427040.

The spelling of 7900223021 in words is "seven billion, nine hundred million, two hundred twenty-three thousand, twenty-one".