70001628 has 24 divisors (see below), whose sum is σ = 163551360. Its totient is φ = 23303280.

The previous prime is 70001611. The next prime is 70001629. The reversal of 70001628 is 82610007.

It is a junction number, because it is equal to n+sod(n) for n = 70001598 and 70001607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70001629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6913 + ... + 13703.

It is an arithmetic number, because the mean of its divisors is an integer number (6814640).

Almost surely, 2^70001628 is an apocalyptic number.

It is an amenable number.

70001628 is an abundant number, since it is smaller than the sum of its proper divisors (93549732).

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

70001628 is a wasteful number, since it uses less digits than its factorization.

70001628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7657 (or 7655 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 70001628 is about 8366.6975563839. The cubic root of 70001628 is about 412.1317249335.

The spelling of 70001628 in words is "seventy million, one thousand, six hundred twenty-eight".