860428398 has 8 divisors (see below), whose sum is σ = 1720856808. Its totient is φ = 286809464.

The previous prime is 860428397. The next prime is 860428399. The reversal of 860428398 is 893824068.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (860428397) and next prime (860428399).

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

860428398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860428397) 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, 71702361 + ... + 71702372.

It is an arithmetic number, because the mean of its divisors is an integer number (215107101).

Almost surely, 2^860428398 is an apocalyptic number.

860428398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

860428398 is a wasteful number, since it uses less digits than its factorization.

860428398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143404738.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 860428398 is about 29333.0598131187. The cubic root of 860428398 is about 951.1264193655.

The spelling of 860428398 in words is "eight hundred sixty million, four hundred twenty-eight thousand, three hundred ninety-eight".