70091983 has 8 divisors (see below), whose sum is σ = 76611248. Its totient is φ = 63733824.

The previous prime is 70091977. The next prime is 70091999. The reversal of 70091983 is 38919007.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70091983 - 2⁵ = 70091951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70091083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39366 + ... + 41107.

It is an arithmetic number, because the mean of its divisors is an integer number (9576406).

Almost surely, 2^70091983 is an apocalyptic number.

70091983 is a deficient number, since it is larger than the sum of its proper divisors (6519265).

70091983 is a wasteful number, since it uses less digits than its factorization.

70091983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80553.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 70091983 is about 8372.0954963498. The cubic root of 70091983 is about 412.3089691527.

The spelling of 70091983 in words is "seventy million, ninety-one thousand, nine hundred eighty-three".