671023199 has 24 divisors (see below), whose sum is σ = 880923600. Its totient is φ = 504833280.

The previous prime is 671023193. The next prime is 671023217. The reversal of 671023199 is 991320176.

It is a happy number.

It is not a de Polignac number, because 671023199 - 2¹⁶ = 670957663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671023193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5834 + ... + 37095.

It is an arithmetic number, because the mean of its divisors is an integer number (36705150).

Almost surely, 2^671023199 is an apocalyptic number.

671023199 is a deficient number, since it is larger than the sum of its proper divisors (209900401).

671023199 is a wasteful number, since it uses less digits than its factorization.

671023199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42983 (or 42976 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 671023199 is about 25904.1154838377. The cubic root of 671023199 is about 875.4792254869.

The spelling of 671023199 in words is "six hundred seventy-one million, twenty-three thousand, one hundred ninety-nine".