71713380 has 24 divisors (see below), whose sum is σ = 200797632. Its totient is φ = 19123552.

The previous prime is 71713357. The next prime is 71713381. The reversal of 71713380 is 8331717.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (71713381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597552 + ... + 597671.

It is an arithmetic number, because the mean of its divisors is an integer number (8366568).

Almost surely, 2^71713380 is an apocalyptic number.

It is an amenable number.

71713380 is an abundant number, since it is smaller than the sum of its proper divisors (129084252).

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

71713380 is a wasteful number, since it uses less digits than its factorization.

71713380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195235 (or 1195233 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 71713380 is about 8468.3752869131. The cubic root of 71713380 is about 415.4639993368.

The spelling of 71713380 in words is "seventy-one million, seven hundred thirteen thousand, three hundred eighty".