12970858 has 4 divisors (see below), whose sum is σ = 19456290. Its totient is φ = 6485428.

The previous prime is 12970843. The next prime is 12970871. The reversal of 12970858 is 85807921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85807921 = 37 ⋅2319133.

It can be written as a sum of positive squares in only one way, i.e., 10452289 + 2518569 = 3233^2 + 1587^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12970858.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3242713 + ... + 3242716.

Almost surely, 2^12970858 is an apocalyptic number.

12970858 is a deficient number, since it is larger than the sum of its proper divisors (6485432).

12970858 is an equidigital number, since it uses as much as digits as its factorization.

12970858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485431.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 12970858 is about 3601.5077398223. The cubic root of 12970858 is about 234.9576383579.

The spelling of 12970858 in words is "twelve million, nine hundred seventy thousand, eight hundred fifty-eight".