70328628 has 24 divisors (see below), whose sum is σ = 182333760. Its totient is φ = 23442840.

The previous prime is 70328611. The next prime is 70328647. The reversal of 70328628 is 82682307.

It is a happy number.

70328628 is a `hidden beast` number, since 7 + 0 + 3 + 28 + 628 = 666.

70328628 is nontrivially palindromic in base 16.

It is a super-2 number, since 2×70328628² = 9892231832724768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 70328592 and 70328601.

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, 325488 + ... + 325703.

It is an arithmetic number, because the mean of its divisors is an integer number (7597240).

Almost surely, 2^70328628 is an apocalyptic number.

It is an amenable number.

70328628 is an abundant number, since it is smaller than the sum of its proper divisors (112005132).

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

70328628 is a wasteful number, since it uses less digits than its factorization.

70328628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651204 (or 651196 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 70328628 is about 8386.2165485993. The cubic root of 70328628 is about 412.7724613186.

The spelling of 70328628 in words is "seventy million, three hundred twenty-eight thousand, six hundred twenty-eight".