70859231 has 2 divisors, whose sum is σ = 70859232. Its totient is φ = 70859230.

The previous prime is 70859203. The next prime is 70859279. The reversal of 70859231 is 13295807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70859231 - 2¹⁴ = 70842847 is a prime.

It is a super-2 number, since 2×70859231² = 10042061235822722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70859191 and 70859200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70859291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35429615 + 35429616.

It is an arithmetic number, because the mean of its divisors is an integer number (35429616).

Almost surely, 2^70859231 is an apocalyptic number.

70859231 is a deficient number, since it is larger than the sum of its proper divisors (1).

70859231 is an equidigital number, since it uses as much as digits as its factorization.

70859231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 70859231 is about 8417.7925253596. The cubic root of 70859231 is about 413.8079324873.

The spelling of 70859231 in words is "seventy million, eight hundred fifty-nine thousand, two hundred thirty-one".