71969480 has 32 divisors (see below), whose sum is σ = 176653440. Its totient is φ = 26170560.

The previous prime is 71969479. The next prime is 71969497. The reversal of 71969480 is 8496917.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81344 + ... + 82223.

It is an arithmetic number, because the mean of its divisors is an integer number (5520420).

Almost surely, 2^71969480 is an apocalyptic number.

It is an amenable number.

71969480 is an abundant number, since it is smaller than the sum of its proper divisors (104683960).

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

71969480 is a wasteful number, since it uses less digits than its factorization.

71969480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163589 (or 163585 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 71969480 is about 8483.4827753700. The cubic root of 71969480 is about 415.9579746748.

The spelling of 71969480 in words is "seventy-one million, nine hundred sixty-nine thousand, four hundred eighty".