70896728 has 40 divisors (see below), whose sum is σ = 155119380. Its totient is φ = 30376080.

The previous prime is 70896719. The next prime is 70896737. The reversal of 70896728 is 82769807.

It is an interprime number because it is at equal distance from previous prime (70896719) and next prime (70896737).

It is a super-2 number, since 2×70896728² = 10052692082211968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17363 + ... + 21053.

Almost surely, 2^70896728 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 70896728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77559690).

70896728 is an abundant number, since it is smaller than the sum of its proper divisors (84222652).

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

70896728 is an equidigital number, since it uses as much as digits as its factorization.

70896728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725 (or 3700 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 70896728 is about 8420.0194774122. The cubic root of 70896728 is about 413.8809120161.

The spelling of 70896728 in words is "seventy million, eight hundred ninety-six thousand, seven hundred twenty-eight".