70897288 has 48 divisors (see below), whose sum is σ = 167005440. Its totient is φ = 27619680.

The previous prime is 70897283. The next prime is 70897289. The reversal of 70897288 is 88279807.

It is not an unprimeable number, because it can be changed into a prime (70897283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1545 + ... + 12007.

It is an arithmetic number, because the mean of its divisors is an integer number (3479280).

Almost surely, 2^70897288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70897288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83502720).

70897288 is an abundant number, since it is smaller than the sum of its proper divisors (96108152).

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

70897288 is a wasteful number, since it uses less digits than its factorization.

70897288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10498 (or 10483 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 70897288 is about 8420.0527314263. The cubic root of 70897288 is about 413.8820017358.

The spelling of 70897288 in words is "seventy million, eight hundred ninety-seven thousand, two hundred eighty-eight".