782069117 has 2 divisors, whose sum is σ = 782069118. Its totient is φ = 782069116.

The previous prime is 782069107. The next prime is 782069149. The reversal of 782069117 is 711960287.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689640121 + 92428996 = 26261^2 + 9614^2 .

It is a cyclic number.

It is not a de Polignac number, because 782069117 - 2¹⁸ = 781806973 is a prime.

It is a super-2 number, since 2×782069117² = 1223264207530319378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (782069107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391034558 + 391034559.

It is an arithmetic number, because the mean of its divisors is an integer number (391034559).

Almost surely, 2^782069117 is an apocalyptic number.

It is an amenable number.

782069117 is a deficient number, since it is larger than the sum of its proper divisors (1).

782069117 is an equidigital number, since it uses as much as digits as its factorization.

782069117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 782069117 is about 27965.4986903506. The cubic root of 782069117 is about 921.3296451992.

The spelling of 782069117 in words is "seven hundred eighty-two million, sixty-nine thousand, one hundred seventeen".