70973220 has 48 divisors (see below), whose sum is σ = 203353920. Its totient is φ = 18485376.

The previous prime is 70973219. The next prime is 70973257. The reversal of 70973220 is 2237907.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 11175 + ... + 16334.

It is an arithmetic number, because the mean of its divisors is an integer number (4236540).

Almost surely, 2^70973220 is an apocalyptic number.

It is an amenable number.

70973220 is an abundant number, since it is smaller than the sum of its proper divisors (132380700).

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

70973220 is a wasteful number, since it uses less digits than its factorization.

70973220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27564 (or 27562 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 70973220 is about 8424.5605226623. The cubic root of 70973220 is about 414.0297068464.

The spelling of 70973220 in words is "seventy million, nine hundred seventy-three thousand, two hundred twenty".