785870449 has 24 divisors (see below), whose sum is σ = 1006119360. Its totient is φ = 600320448.

The previous prime is 785870413. The next prime is 785870473. The reversal of 785870449 is 944078587.

It is not a de Polignac number, because 785870449 - 2¹⁵ = 785837681 is a prime.

It is a super-2 number, since 2×785870449² = 1235184725222923202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 785870396 and 785870405.

It is not an unprimeable number, because it can be changed into a prime (785870149) 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 23 ways as a sum of consecutive naturals, for example, 22854 + ... + 45760.

It is an arithmetic number, because the mean of its divisors is an integer number (41921640).

Almost surely, 2^785870449 is an apocalyptic number.

It is an amenable number.

785870449 is a deficient number, since it is larger than the sum of its proper divisors (220248911).

785870449 is a wasteful number, since it uses less digits than its factorization.

785870449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22969 (or 22956 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 785870449 is about 28033.3809769710. The cubic root of 785870449 is about 922.8199741467.

The spelling of 785870449 in words is "seven hundred eighty-five million, eight hundred seventy thousand, four hundred forty-nine".