158986398 has 8 divisors (see below), whose sum is σ = 317972808. Its totient is φ = 52995464.

The previous prime is 158986391. The next prime is 158986403. The reversal of 158986398 is 893689851.

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

158986398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158986391) 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, 13248861 + ... + 13248872.

It is an arithmetic number, because the mean of its divisors is an integer number (39746601).

Almost surely, 2^158986398 is an apocalyptic number.

158986398 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.

158986398 is a wasteful number, since it uses less digits than its factorization.

158986398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26497738.

The product of its digits is 3732480, while the sum is 57.

The square root of 158986398 is about 12608.9808469995. The cubic root of 158986398 is about 541.7347026598.

The spelling of 158986398 in words is "one hundred fifty-eight million, nine hundred eighty-six thousand, three hundred ninety-eight".