70890211 has 32 divisors (see below), whose sum is σ = 87552000. Its totient is φ = 57294720.

The previous prime is 70890179. The next prime is 70890233. The reversal of 70890211 is 11209807.

It is not a de Polignac number, because 70890211 - 2⁵ = 70890179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70890211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70890011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 627291 + ... + 627403.

It is an arithmetic number, because the mean of its divisors is an integer number (2736000).

Almost surely, 2^70890211 is an apocalyptic number.

70890211 is a deficient number, since it is larger than the sum of its proper divisors (16661789).

70890211 is a wasteful number, since it uses less digits than its factorization.

70890211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 70890211 is about 8419.6324741642. The cubic root of 70890211 is about 413.8682299801.

The spelling of 70890211 in words is "seventy million, eight hundred ninety thousand, two hundred eleven".