70889580 has 60 divisors (see below), whose sum is σ = 222388320. Its totient is φ = 18903456.

The previous prime is 70889573. The next prime is 70889593. The reversal of 70889580 is 8598807.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20260 + ... + 23499.

It is an arithmetic number, because the mean of its divisors is an integer number (3706472).

Almost surely, 2^70889580 is an apocalyptic number.

It is an amenable number.

70889580 is an abundant number, since it is smaller than the sum of its proper divisors (151498740).

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

70889580 is a wasteful number, since it uses less digits than its factorization.

70889580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43780 (or 43769 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 70889580 is about 8419.5950021364. The cubic root of 70889580 is about 413.8670020173.

The spelling of 70889580 in words is "seventy million, eight hundred eighty-nine thousand, five hundred eighty".