70571028 has 24 divisors (see below), whose sum is σ = 179635680. Its totient is φ = 21385120.

The previous prime is 70571009. The next prime is 70571051. The reversal of 70571028 is 82017507.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70570986 and 70571004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267183 + ... + 267446.

It is an arithmetic number, because the mean of its divisors is an integer number (7484820).

Almost surely, 2^70571028 is an apocalyptic number.

It is an amenable number.

70571028 is an abundant number, since it is smaller than the sum of its proper divisors (109064652).

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

70571028 is a wasteful number, since it uses less digits than its factorization.

70571028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534647 (or 534645 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 70571028 is about 8400.6564029247. The cubic root of 70571028 is about 413.2461485092.

The spelling of 70571028 in words is "seventy million, five hundred seventy-one thousand, twenty-eight".