70620528 has 80 divisors (see below), whose sum is σ = 200737152. Its totient is φ = 21216000.

The previous prime is 70620527. The next prime is 70620541. The reversal of 70620528 is 82502607.

It is a junction number, because it is equal to n+sod(n) for n = 70620495 and 70620504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70620527) 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, 68658 + ... + 69678.

Almost surely, 2^70620528 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 70620528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100368576).

70620528 is an abundant number, since it is smaller than the sum of its proper divisors (130116624).

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

70620528 is a wasteful number, since it uses less digits than its factorization.

70620528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 70620528 is about 8403.6020848205. The cubic root of 70620528 is about 413.3427457679.

The spelling of 70620528 in words is "seventy million, six hundred twenty thousand, five hundred twenty-eight".