11942858 has 4 divisors (see below), whose sum is σ = 17914290. Its totient is φ = 5971428.

The previous prime is 11942851. The next prime is 11942893. The reversal of 11942858 is 85824911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85824911 = 7561 ⋅11351.

It can be written as a sum of positive squares in only one way, i.e., 10804369 + 1138489 = 3287^2 + 1067^2 .

It is not an unprimeable number, because it can be changed into a prime (11942851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2985713 + ... + 2985716.

Almost surely, 2^11942858 is an apocalyptic number.

11942858 is a deficient number, since it is larger than the sum of its proper divisors (5971432).

11942858 is an equidigital number, since it uses as much as digits as its factorization.

11942858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5971431.

The product of its digits is 23040, while the sum is 38.

The square root of 11942858 is about 3455.8440358326. The cubic root of 11942858 is about 228.5788742738.

The spelling of 11942858 in words is "eleven million, nine hundred forty-two thousand, eight hundred fifty-eight".