782745349 has 8 divisors (see below), whose sum is σ = 785934072. Its totient is φ = 779563200.

The previous prime is 782745329. The next prime is 782745371. The reversal of 782745349 is 943547287.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8514724 + 774230625 = 2918^2 + 27825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 782745349 - 2⁷ = 782745221 is a prime.

It is a super-2 number, since 2×782745349² = 1225380562762263602, 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 (782745329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484467 + ... + 486079.

It is an arithmetic number, because the mean of its divisors is an integer number (98241759).

Almost surely, 2^782745349 is an apocalyptic number.

It is an amenable number.

782745349 is a deficient number, since it is larger than the sum of its proper divisors (3188723).

782745349 is a wasteful number, since it uses less digits than its factorization.

782745349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287.

The product of its digits is 1693440, while the sum is 49.

The square root of 782745349 is about 27977.5865470916. The cubic root of 782745349 is about 921.5951175164.

The spelling of 782745349 in words is "seven hundred eighty-two million, seven hundred forty-five thousand, three hundred forty-nine".