7021980 has 72 divisors (see below), whose sum is σ = 24347232. Its totient is φ = 1604736.

The previous prime is 7021979. The next prime is 7021981. The reversal of 7021980 is 891207.

It is an interprime number because it is at equal distance from previous prime (7021979) and next prime (7021981).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7021981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1527 + ... + 4046.

It is an arithmetic number, because the mean of its divisors is an integer number (338156).

Almost surely, 2^7021980 is an apocalyptic number.

7021980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7021980 is an abundant number, since it is smaller than the sum of its proper divisors (17325252).

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

7021980 is a wasteful number, since it uses less digits than its factorization.

7021980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595 (or 5590 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 7021980 is about 2649.9018849761. The cubic root of 7021980 is about 191.4931292088.

It can be divided in two parts, 7021 and 980, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 7021980 in words is "seven million, twenty-one thousand, nine hundred eighty".