671900783 has 8 divisors (see below), whose sum is σ = 686186640. Its totient is φ = 657764800.

The previous prime is 671900777. The next prime is 671900813. The reversal of 671900783 is 387009176.

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

It is a cyclic number.

It is not a de Polignac number, because 671900783 - 2²⁸ = 403465327 is a prime.

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 671900783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671900483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28385 + ... + 46362.

It is an arithmetic number, because the mean of its divisors is an integer number (85773330).

Almost surely, 2^671900783 is an apocalyptic number.

671900783 is a deficient number, since it is larger than the sum of its proper divisors (14285857).

671900783 is a wasteful number, since it uses less digits than its factorization.

671900783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74937.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 671900783 is about 25921.0490335557. The cubic root of 671900783 is about 875.8607184402.

The spelling of 671900783 in words is "six hundred seventy-one million, nine hundred thousand, seven hundred eighty-three".