70267221 has 24 divisors (see below), whose sum is σ = 103413024. Its totient is φ = 45970080.

The previous prime is 70267217. The next prime is 70267271. The reversal of 70267221 is 12276207.

It is not a de Polignac number, because 70267221 - 2² = 70267217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70267271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125875 + ... + 126431.

It is an arithmetic number, because the mean of its divisors is an integer number (4308876).

Almost surely, 2^70267221 is an apocalyptic number.

It is an amenable number.

70267221 is a deficient number, since it is larger than the sum of its proper divisors (33145803).

70267221 is a wasteful number, since it uses less digits than its factorization.

70267221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70267221 is about 8382.5545629003. The cubic root of 70267221 is about 412.6522897751.

The spelling of 70267221 in words is "seventy million, two hundred sixty-seven thousand, two hundred twenty-one".