71478984 has 32 divisors (see below), whose sum is σ = 178907040. Its totient is φ = 23798400.

The previous prime is 71478983. The next prime is 71478989. The reversal of 71478984 is 48987417.

It is not an unprimeable number, because it can be changed into a prime (71478983) 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, 34539 + ... + 36549.

It is an arithmetic number, because the mean of its divisors is an integer number (5590845).

Almost surely, 2^71478984 is an apocalyptic number.

It is an amenable number.

71478984 is an abundant number, since it is smaller than the sum of its proper divisors (107428056).

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

71478984 is a wasteful number, since it uses less digits than its factorization.

71478984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501 (or 3497 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 71478984 is about 8454.5244691822. The cubic root of 71478984 is about 415.0108556700.

The spelling of 71478984 in words is "seventy-one million, four hundred seventy-eight thousand, nine hundred eighty-four".