220340693 has 2 divisors, whose sum is σ = 220340694. Its totient is φ = 220340692.

The previous prime is 220340671. The next prime is 220340719. The reversal of 220340693 is 396043022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127757809 + 92582884 = 11303^2 + 9622^2 .

It is a cyclic number.

It is not a de Polignac number, because 220340693 - 2¹⁴ = 220324309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220343693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110170346 + 110170347.

It is an arithmetic number, because the mean of its divisors is an integer number (110170347).

Almost surely, 2^220340693 is an apocalyptic number.

It is an amenable number.

220340693 is a deficient number, since it is larger than the sum of its proper divisors (1).

220340693 is an equidigital number, since it uses as much as digits as its factorization.

220340693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 220340693 is about 14843.8772899805. The cubic root of 220340693 is about 603.9925340436.

The spelling of 220340693 in words is "two hundred twenty million, three hundred forty thousand, six hundred ninety-three".