70091273 has 8 divisors (see below), whose sum is σ = 80898240. Its totient is φ = 59482800.

The previous prime is 70091269. The next prime is 70091297. The reversal of 70091273 is 37219007.

It is a happy number.

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 70091273 - 2² = 70091269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70091213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48863 + ... + 50276.

It is an arithmetic number, because the mean of its divisors is an integer number (10112280).

Almost surely, 2^70091273 is an apocalyptic number.

It is an amenable number.

70091273 is a deficient number, since it is larger than the sum of its proper divisors (10806967).

70091273 is a wasteful number, since it uses less digits than its factorization.

70091273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99247.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 70091273 is about 8372.0530934771. The cubic root of 70091273 is about 412.3075769803.

The spelling of 70091273 in words is "seventy million, ninety-one thousand, two hundred seventy-three".