346699663 has 2 divisors, whose sum is σ = 346699664. Its totient is φ = 346699662.

The previous prime is 346699627. The next prime is 346699681. The reversal of 346699663 is 366996643.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346699663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 346699663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346699063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173349831 + 173349832.

It is an arithmetic number, because the mean of its divisors is an integer number (173349832).

Almost surely, 2^346699663 is an apocalyptic number.

346699663 is a deficient number, since it is larger than the sum of its proper divisors (1).

346699663 is an equidigital number, since it uses as much as digits as its factorization.

346699663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 52.

The square root of 346699663 is about 18619.8727976321. The cubic root of 346699663 is about 702.5077825744.

The spelling of 346699663 in words is "three hundred forty-six million, six hundred ninety-nine thousand, six hundred sixty-three".