70809017 has 8 divisors (see below), whose sum is σ = 72131136. Its totient is φ = 69494832.

The previous prime is 70809001. The next prime is 70809031. The reversal of 70809017 is 71090807.

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 70809017 - 2⁴ = 70809001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70809047) 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, 17828 + ... + 21434.

It is an arithmetic number, because the mean of its divisors is an integer number (9016392).

Almost surely, 2^70809017 is an apocalyptic number.

It is an amenable number.

70809017 is a deficient number, since it is larger than the sum of its proper divisors (1322119).

70809017 is a wasteful number, since it uses less digits than its factorization.

70809017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 70809017 is about 8414.8093858388. The cubic root of 70809017 is about 413.7101618254.

The spelling of 70809017 in words is "seventy million, eight hundred nine thousand, seventeen".