671892528 has 20 divisors (see below), whose sum is σ = 1735722488. Its totient is φ = 223964160.

The previous prime is 671892517. The next prime is 671892569. The reversal of 671892528 is 825298176.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 13997761 = 671892528 / (6 + 7 + 1 + 8 + 9 + 2 + 5 + 2 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6998833 + ... + 6998928.

Almost surely, 2^671892528 is an apocalyptic number.

It is an amenable number.

671892528 is an abundant number, since it is smaller than the sum of its proper divisors (1063829960).

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

671892528 is a wasteful number, since it uses less digits than its factorization.

671892528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13997772 (or 13997766 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 671892528 is about 25920.8897995420. The cubic root of 671892528 is about 875.8571314721.

The spelling of 671892528 in words is "six hundred seventy-one million, eight hundred ninety-two thousand, five hundred twenty-eight".