783349873 has 2 divisors, whose sum is σ = 783349874. Its totient is φ = 783349872.

The previous prime is 783349823. The next prime is 783349883. The reversal of 783349873 is 378943387.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427951969 + 355397904 = 20687^2 + 18852^2 .

It is a cyclic number.

It is not a de Polignac number, because 783349873 - 2¹⁷ = 783218801 is a prime.

It is a super-2 number, since 2×783349873² = 1227274047058232258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 783349873.

It is not a weakly prime, because it can be changed into another prime (783349823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391674936 + 391674937.

It is an arithmetic number, because the mean of its divisors is an integer number (391674937).

Almost surely, 2^783349873 is an apocalyptic number.

It is an amenable number.

783349873 is a deficient number, since it is larger than the sum of its proper divisors (1).

783349873 is an equidigital number, since it uses as much as digits as its factorization.

783349873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 52.

The square root of 783349873 is about 27988.3881815299. The cubic root of 783349873 is about 921.8323096010.

The spelling of 783349873 in words is "seven hundred eighty-three million, three hundred forty-nine thousand, eight hundred seventy-three".