70889472 has 104 divisors (see below), whose sum is σ = 210344880. Its totient is φ = 23592960.

The previous prime is 70889431. The next prime is 70889477. The reversal of 70889472 is 27498807.

It is not an unprimeable number, because it can be changed into a prime (70889477) 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, 110272 + ... + 110912.

Almost surely, 2^70889472 is an apocalyptic number.

70889472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70889472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105172440).

70889472 is an abundant number, since it is smaller than the sum of its proper divisors (139455408).

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

70889472 is an equidigital number, since it uses as much as digits as its factorization.

70889472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 70889472 is about 8419.5885885238. The cubic root of 70889472 is about 413.8667918423.

The spelling of 70889472 in words is "seventy million, eight hundred eighty-nine thousand, four hundred seventy-two".