70726317 has 4 divisors (see below), whose sum is σ = 94301760. Its totient is φ = 47150876.

The previous prime is 70726297. The next prime is 70726319. The reversal of 70726317 is 71362707.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70726317 - 2¹⁰ = 70725293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70726319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11787717 + ... + 11787722.

It is an arithmetic number, because the mean of its divisors is an integer number (23575440).

Almost surely, 2^70726317 is an apocalyptic number.

It is an amenable number.

70726317 is a deficient number, since it is larger than the sum of its proper divisors (23575443).

70726317 is a wasteful number, since it uses less digits than its factorization.

70726317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23575442.

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 70726317 is about 8409.8939945757. The cubic root of 70726317 is about 413.5490375305.

The spelling of 70726317 in words is "seventy million, seven hundred twenty-six thousand, three hundred seventeen".