858674990 has 8 divisors (see below), whose sum is σ = 1545615000. Its totient is φ = 343469992.

The previous prime is 858674987. The next prime is 858675029. The reversal of 858674990 is 99476858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42933740 + ... + 42933759.

It is an arithmetic number, because the mean of its divisors is an integer number (193201875).

Almost surely, 2^858674990 is an apocalyptic number.

858674990 is a deficient number, since it is larger than the sum of its proper divisors (686940010).

858674990 is a wasteful number, since it uses less digits than its factorization.

858674990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85867506.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 858674990 is about 29303.1566558963. The cubic root of 858674990 is about 950.4799015766.

The spelling of 858674990 in words is "eight hundred fifty-eight million, six hundred seventy-four thousand, nine hundred ninety".