8342858 has 4 divisors (see below), whose sum is σ = 12514290. Its totient is φ = 4171428.

The previous prime is 8342857. The next prime is 8342861. The reversal of 8342858 is 8582438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8582438 = 2 ⋅4291219.

It can be written as a sum of positive squares in only one way, i.e., 8025889 + 316969 = 2833^2 + 563^2 .

It is not an unprimeable number, because it can be changed into a prime (8342857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2085713 + ... + 2085716.

Almost surely, 2^8342858 is an apocalyptic number.

8342858 is a deficient number, since it is larger than the sum of its proper divisors (4171432).

8342858 is a wasteful number, since it uses less digits than its factorization.

8342858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171431.

The product of its digits is 61440, while the sum is 38.

The square root of 8342858 is about 2888.4005954853. The cubic root of 8342858 is about 202.8172783720.

It can be divided in two parts, 8342 and 858, that multiplied together give a triangular number (7157436 = T₃₇₈₃).

The spelling of 8342858 in words is "eight million, three hundred forty-two thousand, eight hundred fifty-eight".