70818072 has 64 divisors (see below), whose sum is σ = 193841760. Its totient is φ = 21432960.

The previous prime is 70818071. The next prime is 70818089. The reversal of 70818072 is 27081807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70818071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160922 + ... + 1160982.

Almost surely, 2^70818072 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 70818072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96920880).

70818072 is an abundant number, since it is smaller than the sum of its proper divisors (123023688).

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

70818072 is an equidigital number, since it uses as much as digits as its factorization.

70818072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 70818072 is about 8415.3474081585. The cubic root of 70818072 is about 413.7277960477.

Adding to 70818072 its reverse (27081807), we get a palindrome (97899879).

The spelling of 70818072 in words is "seventy million, eight hundred eighteen thousand, seventy-two".