71380704 has 24 divisors (see below), whose sum is σ = 187374600. Its totient is φ = 23793536.

The previous prime is 71380697. The next prime is 71380709. The reversal of 71380704 is 40708317.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71380709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371679 + ... + 371870.

It is an arithmetic number, because the mean of its divisors is an integer number (7807275).

Almost surely, 2^71380704 is an apocalyptic number.

It is an amenable number.

71380704 is an abundant number, since it is smaller than the sum of its proper divisors (115993896).

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

71380704 is a wasteful number, since it uses less digits than its factorization.

71380704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743562 (or 743554 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 71380704 is about 8448.7101974207. The cubic root of 71380704 is about 414.8205620928.

The spelling of 71380704 in words is "seventy-one million, three hundred eighty thousand, seven hundred four".