783243738 has 12 divisors (see below), whose sum is σ = 1697028138. Its totient is φ = 261081240.

The previous prime is 783243731. The next prime is 783243761. The reversal of 783243738 is 837342387.

It can be written as a sum of positive squares in only one way, i.e., 750376449 + 32867289 = 27393^2 + 5733^2 .

It is a super-2 number, since 2×783243738² = 1226941506232425288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 783243693 and 783243702.

It is not an unprimeable number, because it can be changed into a prime (783243731) 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 5 ways as a sum of consecutive naturals, for example, 21756753 + ... + 21756788.

Almost surely, 2^783243738 is an apocalyptic number.

783243738 is an abundant number, since it is smaller than the sum of its proper divisors (913784400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

783243738 is a wasteful number, since it uses less digits than its factorization.

783243738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43513549 (or 43513546 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 783243738 is about 27986.4920631365. The cubic root of 783243738 is about 921.7906751222.

The spelling of 783243738 in words is "seven hundred eighty-three million, two hundred forty-three thousand, seven hundred thirty-eight".