785856449 has 4 divisors (see below), whose sum is σ = 898121664. Its totient is φ = 673591236.

The previous prime is 785856439. The next prime is 785856499. The reversal of 785856449 is 944658587.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 944658587 = 19 ⋅49718873.

It is a cyclic number.

It is not a de Polignac number, because 785856449 - 2¹⁶ = 785790913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 785856394 and 785856403.

It is not an unprimeable number, because it can be changed into a prime (785856419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56132597 + ... + 56132610.

It is an arithmetic number, because the mean of its divisors is an integer number (224530416).

Almost surely, 2^785856449 is an apocalyptic number.

It is an amenable number.

785856449 is a deficient number, since it is larger than the sum of its proper divisors (112265215).

785856449 is a wasteful number, since it uses less digits than its factorization.

785856449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112265214.

The product of its digits is 9676800, while the sum is 56.

The square root of 785856449 is about 28033.1312735484. The cubic root of 785856449 is about 922.8144942119.

The spelling of 785856449 in words is "seven hundred eighty-five million, eight hundred fifty-six thousand, four hundred forty-nine".