785031449 has 4 divisors (see below), whose sum is σ = 785792436. Its totient is φ = 784270464.

The previous prime is 785031439. The next prime is 785031461. The reversal of 785031449 is 944130587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944130587 = 9781 ⋅96527.

It can be written as a sum of positive squares in 2 ways, for example, as 452625625 + 332405824 = 21275^2 + 18232^2 .

It is a cyclic number.

It is not a de Polignac number, because 785031449 - 2⁴ = 785031433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (785031419) 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, 378944 + ... + 381009.

It is an arithmetic number, because the mean of its divisors is an integer number (196448109).

Almost surely, 2^785031449 is an apocalyptic number.

It is an amenable number.

785031449 is a deficient number, since it is larger than the sum of its proper divisors (760987).

785031449 is a wasteful number, since it uses less digits than its factorization.

785031449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760986.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 785031449 is about 28018.4126780944. The cubic root of 785031449 is about 922.4914544979.

The spelling of 785031449 in words is "seven hundred eighty-five million, thirty-one thousand, four hundred forty-nine".