70859997 has 12 divisors (see below), whose sum is σ = 110226844. Its totient is φ = 43606080.

The previous prime is 70859989. The next prime is 70860007. The reversal of 70859997 is 79995807.

It can be written as a sum of positive squares in 2 ways, for example, as 4372281 + 66487716 = 2091^2 + 8154^2 .

It is not a de Polignac number, because 70859997 - 2³ = 70859989 is a prime.

It is a super-2 number, since 2×70859997² = 10042278349680018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70859947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302704 + ... + 302937.

Almost surely, 2^70859997 is an apocalyptic number.

It is an amenable number.

70859997 is a deficient number, since it is larger than the sum of its proper divisors (39366847).

70859997 is a wasteful number, since it uses less digits than its factorization.

70859997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605660 (or 605657 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The square root of 70859997 is about 8417.8380241010. The cubic root of 70859997 is about 413.8094235927.

The spelling of 70859997 in words is "seventy million, eight hundred fifty-nine thousand, nine hundred ninety-seven".