70990259 has 4 divisors (see below), whose sum is σ = 74076816. Its totient is φ = 67903704.

The previous prime is 70990247. The next prime is 70990277. The reversal of 70990259 is 95209907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95209907 = 13 ⋅7323839.

It is a cyclic number.

It is not a de Polignac number, because 70990259 - 2⁴ = 70990243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70990159) 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, 1543244 + ... + 1543289.

It is an arithmetic number, because the mean of its divisors is an integer number (18519204).

Almost surely, 2^70990259 is an apocalyptic number.

70990259 is a deficient number, since it is larger than the sum of its proper divisors (3086557).

70990259 is a wasteful number, since it uses less digits than its factorization.

70990259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086556.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 70990259 is about 8425.5717313426. The cubic root of 70990259 is about 414.0628371252.

The spelling of 70990259 in words is "seventy million, nine hundred ninety thousand, two hundred fifty-nine".