70202172 has 24 divisors (see below), whose sum is σ = 168233296. Its totient is φ = 22768128.

The previous prime is 70202123. The next prime is 70202177. The reversal of 70202172 is 27120207.

70202172 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

70202172 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70202177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78613 + ... + 79500.

Almost surely, 2^70202172 is an apocalyptic number.

It is an amenable number.

70202172 is an abundant number, since it is smaller than the sum of its proper divisors (98031124).

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

70202172 is a wasteful number, since it uses less digits than its factorization.

70202172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158157 (or 158155 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 70202172 is about 8378.6736420510. The cubic root of 70202172 is about 412.5249145649.

Adding to 70202172 its reverse (27120207), we get a palindrome (97322379).

The spelling of 70202172 in words is "seventy million, two hundred two thousand, one hundred seventy-two".