71272104 has 32 divisors (see below), whose sum is σ = 182528640. Its totient is φ = 23177600.

The previous prime is 71272099. The next prime is 71272127. The reversal of 71272104 is 40127217.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35232 + ... + 37199.

It is an arithmetic number, because the mean of its divisors is an integer number (5704020).

Almost surely, 2^71272104 is an apocalyptic number.

It is an amenable number.

71272104 is an abundant number, since it is smaller than the sum of its proper divisors (111256536).

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

71272104 is a wasteful number, since it uses less digits than its factorization.

71272104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72481 (or 72477 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 71272104 is about 8442.2807344935. The cubic root of 71272104 is about 414.6100832741.

The spelling of 71272104 in words is "seventy-one million, two hundred seventy-two thousand, one hundred four".