671098158 has 12 divisors (see below), whose sum is σ = 1454046048. Its totient is φ = 223699380.

The previous prime is 671098139. The next prime is 671098159. The reversal of 671098158 is 851890176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671098159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18641598 + ... + 18641633.

It is an arithmetic number, because the mean of its divisors is an integer number (121170504).

Almost surely, 2^671098158 is an apocalyptic number.

671098158 is an abundant number, since it is smaller than the sum of its proper divisors (782947890).

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

671098158 is a wasteful number, since it uses less digits than its factorization.

671098158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37283239 (or 37283236 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 671098158 is about 25905.5622984717. The cubic root of 671098158 is about 875.5118237656.

The spelling of 671098158 in words is "six hundred seventy-one million, ninety-eight thousand, one hundred fifty-eight".