70220670 has 32 divisors (see below), whose sum is σ = 181494432. Its totient is φ = 17284992.

The previous prime is 70220669. The next prime is 70220701. The reversal of 70220670 is 7602207.

It is a self number, because there is not a number n which added to its sum of digits gives 70220670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89637 + ... + 90416.

It is an arithmetic number, because the mean of its divisors is an integer number (5671701).

Almost surely, 2^70220670 is an apocalyptic number.

70220670 is an abundant number, since it is smaller than the sum of its proper divisors (111273762).

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

70220670 is a wasteful number, since it uses less digits than its factorization.

70220670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180076.

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

The square root of 70220670 is about 8379.7774433454. Note that the first 3 decimals coincide. The cubic root of 70220670 is about 412.5611442879.

Adding to 70220670 its reverse (7602207), we get a palindrome (77822877).

The spelling of 70220670 in words is "seventy million, two hundred twenty thousand, six hundred seventy".