340797761 has 2 divisors, whose sum is σ = 340797762. Its totient is φ = 340797760.

The previous prime is 340797733. The next prime is 340797773. The reversal of 340797761 is 167797043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281199361 + 59598400 = 16769^2 + 7720^2 .

It is an emirp because it is prime and its reverse (167797043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340797761 - 2²⁶ = 273688897 is a prime.

It is a super-2 number, since 2×340797761² = 232286227805226242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340797701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170398880 + 170398881.

It is an arithmetic number, because the mean of its divisors is an integer number (170398881).

Almost surely, 2^340797761 is an apocalyptic number.

It is an amenable number.

340797761 is a deficient number, since it is larger than the sum of its proper divisors (1).

340797761 is an equidigital number, since it uses as much as digits as its factorization.

340797761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 340797761 is about 18460.7085725332. The cubic root of 340797761 is about 698.4986605044.

The spelling of 340797761 in words is "three hundred forty million, seven hundred ninety-seven thousand, seven hundred sixty-one".