785128473 has 12 divisors (see below), whose sum is σ = 1134881280. Its totient is φ = 523046616.

The previous prime is 785128471. The next prime is 785128489. The reversal of 785128473 is 374821587.

It is not a de Polignac number, because 785128473 - 2¹ = 785128471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (785128471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17361 + ... + 43262.

It is an arithmetic number, because the mean of its divisors is an integer number (94573440).

Almost surely, 2^785128473 is an apocalyptic number.

It is an amenable number.

785128473 is a deficient number, since it is larger than the sum of its proper divisors (349752807).

785128473 is a wasteful number, since it uses less digits than its factorization.

785128473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62068 (or 62065 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 785128473 is about 28020.1440574455. The cubic root of 785128473 is about 922.5294572743.

The spelling of 785128473 in words is "seven hundred eighty-five million, one hundred twenty-eight thousand, four hundred seventy-three".