780836053 has 2 divisors, whose sum is σ = 780836054. Its totient is φ = 780836052.

The previous prime is 780836009. The next prime is 780836057. The reversal of 780836053 is 350638087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 778298404 + 2537649 = 27898^2 + 1593^2 .

It is a cyclic number.

It is not a de Polignac number, because 780836053 - 2⁹ = 780835541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 780835997 and 780836015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (780836057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390418026 + 390418027.

It is an arithmetic number, because the mean of its divisors is an integer number (390418027).

Almost surely, 2^780836053 is an apocalyptic number.

It is an amenable number.

780836053 is a deficient number, since it is larger than the sum of its proper divisors (1).

780836053 is an equidigital number, since it uses as much as digits as its factorization.

780836053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 780836053 is about 27943.4438285620. The cubic root of 780836053 is about 920.8451799181.

The spelling of 780836053 in words is "seven hundred eighty million, eight hundred thirty-six thousand, fifty-three".