70672170 has 16 divisors (see below), whose sum is σ = 169613280. Its totient is φ = 18845904.

The previous prime is 70672117. The next prime is 70672181. The reversal of 70672170 is 7127607.

It is a happy number.

It is a super-2 number, since 2×70672170² = 9989111225017800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2355739 = 70672170 / (7 + 0 + 6 + 7 + 2 + 1 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177840 + ... + 1177899.

It is an arithmetic number, because the mean of its divisors is an integer number (10600830).

Almost surely, 2^70672170 is an apocalyptic number.

70672170 is an abundant number, since it is smaller than the sum of its proper divisors (98941110).

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

70672170 is a wasteful number, since it uses less digits than its factorization.

70672170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355749.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 70672170 is about 8406.6741342816. The cubic root of 70672170 is about 413.4434749546.

Adding to 70672170 its reverse (7127607), we get a palindrome (77799777).

The spelling of 70672170 in words is "seventy million, six hundred seventy-two thousand, one hundred seventy".