70073317 has 4 divisors (see below), whose sum is σ = 70090060. Its totient is φ = 70056576.

The previous prime is 70073291. The next prime is 70073329. The reversal of 70073317 is 71337007.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 54081316 + 15992001 = 7354^2 + 3999^2 .

It is a cyclic number.

It is not a de Polignac number, because 70073317 - 2¹⁵ = 70040549 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 (70073117) 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, 4159 + ... + 12547.

It is an arithmetic number, because the mean of its divisors is an integer number (17522515).

Almost surely, 2^70073317 is an apocalyptic number.

It is an amenable number.

70073317 is a deficient number, since it is larger than the sum of its proper divisors (16743).

70073317 is an equidigital number, since it uses as much as digits as its factorization.

70073317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16742.

The product of its (nonzero) digits is 3087, while the sum is 28.

The square root of 70073317 is about 8370.9806474510. The cubic root of 70073317 is about 412.2723656203.

The spelling of 70073317 in words is "seventy million, seventy-three thousand, three hundred seventeen".