71401884 has 24 divisors (see below), whose sum is σ = 168888720. Its totient is φ = 23474304.

The previous prime is 71401879. The next prime is 71401901. The reversal of 71401884 is 48810417.

It is a congruent number.

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, 39879 + ... + 41630.

It is an arithmetic number, because the mean of its divisors is an integer number (7037030).

Almost surely, 2^71401884 is an apocalyptic number.

It is an amenable number.

71401884 is an abundant number, since it is smaller than the sum of its proper divisors (97486836).

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

71401884 is a wasteful number, since it uses less digits than its factorization.

71401884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81589 (or 81587 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 71401884 is about 8449.9635502172. The cubic root of 71401884 is about 414.8615863948.

The spelling of 71401884 in words is "seventy-one million, four hundred one thousand, eight hundred eighty-four".