7147980 has 192 divisors, whose sum is σ = 26664960. Its totient is φ = 1555200.

The previous prime is 7147979. The next prime is 7147991. The reversal of 7147980 is 897417.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 117150 + ... + 117210.

It is an arithmetic number, because the mean of its divisors is an integer number (138880).

Almost surely, 2^7147980 is an apocalyptic number.

7147980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7147980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13332480).

7147980 is an abundant number, since it is smaller than the sum of its proper divisors (19516980).

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

7147980 is a wasteful number, since it uses less digits than its factorization.

7147980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 7147980 is about 2673.5706461584. The cubic root of 7147980 is about 192.6317083692.

The spelling of 7147980 in words is "seven million, one hundred forty-seven thousand, nine hundred eighty".