671470785 has 48 divisors (see below), whose sum is σ = 1221143040. Its totient is φ = 340851840.

The previous prime is 671470771. The next prime is 671470801. The reversal of 671470785 is 587074176.

It is not a de Polignac number, because 671470785 - 2⁶ = 671470721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 671470785.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89032 + ... + 96278.

It is an arithmetic number, because the mean of its divisors is an integer number (25440480).

Almost surely, 2^671470785 is an apocalyptic number.

It is an amenable number.

671470785 is a deficient number, since it is larger than the sum of its proper divisors (549672255).

671470785 is a wasteful number, since it uses less digits than its factorization.

671470785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7358 (or 7355 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 671470785 is about 25912.7533272711. The cubic root of 671470785 is about 875.6738363205.

The spelling of 671470785 in words is "six hundred seventy-one million, four hundred seventy thousand, seven hundred eighty-five".