70213628 has 12 divisors (see below), whose sum is σ = 123082512. Its totient is φ = 35047200.

The previous prime is 70213609. The next prime is 70213631. The reversal of 70213628 is 82631207.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 70213628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12200 + ... + 17007.

It is an arithmetic number, because the mean of its divisors is an integer number (10256876).

Almost surely, 2^70213628 is an apocalyptic number.

It is an amenable number.

70213628 is a deficient number, since it is larger than the sum of its proper divisors (52868884).

70213628 is a wasteful number, since it uses less digits than its factorization.

70213628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29812 (or 29810 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 70213628 is about 8379.3572545870. The cubic root of 70213628 is about 412.5473527519.

The spelling of 70213628 in words is "seventy million, two hundred thirteen thousand, six hundred twenty-eight".