785674399 has 4 divisors (see below), whose sum is σ = 796437136. Its totient is φ = 774911664.

The previous prime is 785674387. The next prime is 785674441. The reversal of 785674399 is 993476587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993476587 = 79 ⋅12575653.

It is a cyclic number.

It is not a de Polignac number, because 785674399 - 2⁵ = 785674367 is a prime.

It is a super-2 number, since 2×785674399² = 1234568522488022402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785644399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5381259 + ... + 5381404.

It is an arithmetic number, because the mean of its divisors is an integer number (199109284).

Almost surely, 2^785674399 is an apocalyptic number.

785674399 is a deficient number, since it is larger than the sum of its proper divisors (10762737).

785674399 is a wasteful number, since it uses less digits than its factorization.

785674399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10762736.

The product of its digits is 11430720, while the sum is 58.

The square root of 785674399 is about 28029.8840347227. The cubic root of 785674399 is about 922.7432295625.

The spelling of 785674399 in words is "seven hundred eighty-five million, six hundred seventy-four thousand, three hundred ninety-nine".