71073570 has 32 divisors (see below), whose sum is σ = 171154368. Its totient is φ = 18888768.

The previous prime is 71073523. The next prime is 71073631. The reversal of 71073570 is 7537017.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5352 + ... + 13068.

It is an arithmetic number, because the mean of its divisors is an integer number (5348574).

Almost surely, 2^71073570 is an apocalyptic number.

71073570 is an abundant number, since it is smaller than the sum of its proper divisors (100080798).

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

71073570 is a wasteful number, since it uses less digits than its factorization.

71073570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8034.

The product of its (nonzero) digits is 5145, while the sum is 30.

The square root of 71073570 is about 8430.5142191921. The cubic root of 71073570 is about 414.2247490268.

The spelling of 71073570 in words is "seventy-one million, seventy-three thousand, five hundred seventy".