71980108 has 48 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 32626944.

The previous prime is 71980099. The next prime is 71980121. The reversal of 71980108 is 80108917.

It is a super-2 number, since 2×71980108² = 10362271895383328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301053 + ... + 301291.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^71980108 is an apocalyptic number.

It is an amenable number.

71980108 is a deficient number, since it is larger than the sum of its proper divisors (66398132).

71980108 is a wasteful number, since it uses less digits than its factorization.

71980108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 71980108 is about 8484.1091459269. The cubic root of 71980108 is about 415.9784490192.

The spelling of 71980108 in words is "seventy-one million, nine hundred eighty thousand, one hundred eight".