70170623 has 4 divisors (see below), whose sum is σ = 70558488. Its totient is φ = 69782760.

The previous prime is 70170613. The next prime is 70170637. The reversal of 70170623 is 32607107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70170623 - 2⁶ = 70170559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70170592 and 70170601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70170613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193661 + ... + 194022.

It is an arithmetic number, because the mean of its divisors is an integer number (17639622).

Almost surely, 2^70170623 is an apocalyptic number.

70170623 is a deficient number, since it is larger than the sum of its proper divisors (387865).

70170623 is a wasteful number, since it uses less digits than its factorization.

70170623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387864.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 70170623 is about 8376.7907339267. The cubic root of 70170623 is about 412.4631087914.

The spelling of 70170623 in words is "seventy million, one hundred seventy thousand, six hundred twenty-three".