71913560 has 16 divisors (see below), whose sum is σ = 161805600. Its totient is φ = 28765408.

The previous prime is 71913559. The next prime is 71913581. The reversal of 71913560 is 6531917.

It is a super-2 number, since 2×71913560² = 10343120223747200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898880 + ... + 898959.

It is an arithmetic number, because the mean of its divisors is an integer number (10112850).

Almost surely, 2^71913560 is an apocalyptic number.

It is an amenable number.

71913560 is an abundant number, since it is smaller than the sum of its proper divisors (89892040).

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

71913560 is a wasteful number, since it uses less digits than its factorization.

71913560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797850 (or 1797846 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 71913560 is about 8480.1863187079. The cubic root of 71913560 is about 415.8502141956.

The spelling of 71913560 in words is "seventy-one million, nine hundred thirteen thousand, five hundred sixty".