71947104 has 24 divisors (see below), whose sum is σ = 188861400. Its totient is φ = 23982336.

The previous prime is 71947097. The next prime is 71947123. The reversal of 71947104 is 40174917.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 374629 + ... + 374820.

It is an arithmetic number, because the mean of its divisors is an integer number (7869225).

Almost surely, 2^71947104 is an apocalyptic number.

It is an amenable number.

71947104 is an abundant number, since it is smaller than the sum of its proper divisors (116914296).

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

71947104 is a wasteful number, since it uses less digits than its factorization.

71947104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749462 (or 749454 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 71947104 is about 8482.1638748612. The cubic root of 71947104 is about 415.9148617682.

The spelling of 71947104 in words is "seventy-one million, nine hundred forty-seven thousand, one hundred four".