70173431 has 8 divisors (see below), whose sum is σ = 71628624. Its totient is φ = 68723200.

The previous prime is 70173413. The next prime is 70173443. The reversal of 70173431 is 13437107.

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 70173431 - 2¹⁰ = 70172407 is a prime.

It is a super-2 number, since 2×70173431² = 9848620836623522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70173431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70173451) 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, 43031 + ... + 44631.

It is an arithmetic number, because the mean of its divisors is an integer number (8953578).

Almost surely, 2^70173431 is an apocalyptic number.

70173431 is a deficient number, since it is larger than the sum of its proper divisors (1455193).

70173431 is a wasteful number, since it uses less digits than its factorization.

70173431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 70173431 is about 8376.9583382037. The cubic root of 70173431 is about 412.4686105285.

The spelling of 70173431 in words is "seventy million, one hundred seventy-three thousand, four hundred thirty-one".