70212273 has 16 divisors (see below), whose sum is σ = 97317696. Its totient is φ = 44988480.

The previous prime is 70212257. The next prime is 70212283. The reversal of 70212273 is 37221207.

It is not a de Polignac number, because 70212273 - 2⁴ = 70212257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70212283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5403 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (6082356).

Almost surely, 2^70212273 is an apocalyptic number.

It is an amenable number.

70212273 is a deficient number, since it is larger than the sum of its proper divisors (27105423).

70212273 is a wasteful number, since it uses less digits than its factorization.

70212273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7744.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 70212273 is about 8379.2764007401. The cubic root of 70212273 is about 412.5446989211.

The spelling of 70212273 in words is "seventy million, two hundred twelve thousand, two hundred seventy-three".