70788816 has 240 divisors, whose sum is σ = 249726080. Its totient is φ = 19035648.

The previous prime is 70788811. The next prime is 70788827. The reversal of 70788816 is 61888707.

It is a super-2 number, since 2×70788816² = 10022112941363712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70788811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4164040 + ... + 4164056.

Almost surely, 2^70788816 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 70788816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124863040).

70788816 is an abundant number, since it is smaller than the sum of its proper divisors (178937264).

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

70788816 is an equidigital number, since it uses as much as digits as its factorization.

70788816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 70788816 is about 8413.6089759389. The cubic root of 70788816 is about 413.6708158296.

The spelling of 70788816 in words is "seventy million, seven hundred eighty-eight thousand, eight hundred sixteen".