7021992 has 32 divisors (see below), whose sum is σ = 18319680. Its totient is φ = 2238720.

The previous prime is 7021981. The next prime is 7021997. The reversal of 7021992 is 2991207.

It is not an unprimeable number, because it can be changed into a prime (7021997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5809 + ... + 6912.

It is an arithmetic number, because the mean of its divisors is an integer number (572490).

Almost surely, 2^7021992 is an apocalyptic number.

It is an amenable number.

7021992 is an abundant number, since it is smaller than the sum of its proper divisors (11297688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7021992 is a wasteful number, since it uses less digits than its factorization.

7021992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12753 (or 12749 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 7021992 is about 2649.9041492099. The cubic root of 7021992 is about 191.4932382908.

The spelling of 7021992 in words is "seven million, twenty-one thousand, nine hundred ninety-two".