70028756 has 48 divisors (see below), whose sum is σ = 148646400. Its totient is φ = 28198368.

The previous prime is 70028723. The next prime is 70028771. The reversal of 70028756 is 65782007.

It is a super-3 number, since 3×70028756³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73475 + ... + 74421.

It is an arithmetic number, because the mean of its divisors is an integer number (3096800).

Almost surely, 2^70028756 is an apocalyptic number.

70028756 is a gapful number since it is divisible by the number (76) 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 70028756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74323200).

70028756 is an abundant number, since it is smaller than the sum of its proper divisors (78617644).

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

70028756 is a wasteful number, since it uses less digits than its factorization.

70028756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 70028756 is about 8368.3185885816. The cubic root of 70028756 is about 412.1849563883.

The spelling of 70028756 in words is "seventy million, twenty-eight thousand, seven hundred fifty-six".