70397712 has 180 divisors, whose sum is σ = 250292016. Its totient is φ = 18264960.

The previous prime is 70397699. The next prime is 70397741. The reversal of 70397712 is 21779307.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 77163 + ... + 78069.

Almost surely, 2^70397712 is an apocalyptic number.

70397712 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 70397712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125146008).

70397712 is an abundant number, since it is smaller than the sum of its proper divisors (179894304).

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

70397712 is a wasteful number, since it uses less digits than its factorization.

70397712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 70397712 is about 8390.3344391031. The cubic root of 70397712 is about 412.9075729203.

The spelling of 70397712 in words is "seventy million, three hundred ninety-seven thousand, seven hundred twelve".