340868761 has 2 divisors, whose sum is σ = 340868762. Its totient is φ = 340868760.

The previous prime is 340868729. The next prime is 340868771. The reversal of 340868761 is 167868043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297769536 + 43099225 = 17256^2 + 6565^2 .

It is a cyclic number.

It is not a de Polignac number, because 340868761 - 2⁵ = 340868729 is a prime.

It is a super-4 number, since 4×340868761⁴ (a number of 35 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (340868701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170434380 + 170434381.

It is an arithmetic number, because the mean of its divisors is an integer number (170434381).

Almost surely, 2^340868761 is an apocalyptic number.

It is an amenable number.

340868761 is a deficient number, since it is larger than the sum of its proper divisors (1).

340868761 is an equidigital number, since it uses as much as digits as its factorization.

340868761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 340868761 is about 18462.6314754967. The cubic root of 340868761 is about 698.5471643063.

The spelling of 340868761 in words is "three hundred forty million, eight hundred sixty-eight thousand, seven hundred sixty-one".