785872158 has 16 divisors (see below), whose sum is σ = 1664200080. Its totient is φ = 246548096.

The previous prime is 785872127. The next prime is 785872159. The reversal of 785872158 is 851278587.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 785872158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785872159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3852213 + ... + 3852416.

It is an arithmetic number, because the mean of its divisors is an integer number (104012505).

Almost surely, 2^785872158 is an apocalyptic number.

785872158 is an abundant number, since it is smaller than the sum of its proper divisors (878327922).

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

785872158 is a wasteful number, since it uses less digits than its factorization.

785872158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7704651.

The product of its digits is 1254400, while the sum is 51.

The square root of 785872158 is about 28033.4114584722. The cubic root of 785872158 is about 922.8206430857.

The spelling of 785872158 in words is "seven hundred eighty-five million, eight hundred seventy-two thousand, one hundred fifty-eight".