671025535 has 32 divisors (see below), whose sum is σ = 861493248. Its totient is φ = 500895360.

The previous prime is 671025503. The next prime is 671025541. The reversal of 671025535 is 535520176.

It is not a de Polignac number, because 671025535 - 2⁵ = 671025503 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671025535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552589 + ... + 553801.

It is an arithmetic number, because the mean of its divisors is an integer number (26921664).

Almost surely, 2^671025535 is an apocalyptic number.

671025535 is a deficient number, since it is larger than the sum of its proper divisors (190467713).

671025535 is a wasteful number, since it uses less digits than its factorization.

671025535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 671025535 is about 25904.1605731589. The cubic root of 671025535 is about 875.4802414066.

The spelling of 671025535 in words is "six hundred seventy-one million, twenty-five thousand, five hundred thirty-five".