290332769 has 2 divisors, whose sum is σ = 290332770. Its totient is φ = 290332768.

The previous prime is 290332759. The next prime is 290332793. The reversal of 290332769 is 967233092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275161744 + 15171025 = 16588^2 + 3895^2 .

It is a cyclic number.

It is not a de Polignac number, because 290332769 - 2²⁴ = 273555553 is a prime.

It is a super-2 number, since 2×290332769² = 168586233510414722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (290332709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145166384 + 145166385.

It is an arithmetic number, because the mean of its divisors is an integer number (145166385).

Almost surely, 2^290332769 is an apocalyptic number.

It is an amenable number.

290332769 is a deficient number, since it is larger than the sum of its proper divisors (1).

290332769 is an equidigital number, since it uses as much as digits as its factorization.

290332769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 290332769 is about 17039.1539989519. The cubic root of 290332769 is about 662.1636742638.

The spelling of 290332769 in words is "two hundred ninety million, three hundred thirty-two thousand, seven hundred sixty-nine".