70170128 has 20 divisors (see below), whose sum is σ = 155376960. Its totient is φ = 30072864.

The previous prime is 70170127. The next prime is 70170131. The reversal of 70170128 is 82107107.

It is a junction number, because it is equal to n+sod(n) for n = 70170097 and 70170106.

It is not an unprimeable number, because it can be changed into a prime (70170127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313148 + ... + 313371.

It is an arithmetic number, because the mean of its divisors is an integer number (7768848).

Almost surely, 2^70170128 is an apocalyptic number.

It is an amenable number.

70170128 is an abundant number, since it is smaller than the sum of its proper divisors (85206832).

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

70170128 is a wasteful number, since it uses less digits than its factorization.

70170128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626534 (or 626528 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 70170128 is about 8376.7611879533. The cubic root of 70170128 is about 412.4621389187.

The spelling of 70170128 in words is "seventy million, one hundred seventy thousand, one hundred twenty-eight".