373649663 has 2 divisors, whose sum is σ = 373649664. Its totient is φ = 373649662.

The previous prime is 373649609. The next prime is 373649669. The reversal of 373649663 is 366946373.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 373649663 - 2⁶ = 373649599 is a prime.

It is a super-2 number, since 2×373649663² = 279228141320027138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (373649669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186824831 + 186824832.

It is an arithmetic number, because the mean of its divisors is an integer number (186824832).

Almost surely, 2^373649663 is an apocalyptic number.

373649663 is a deficient number, since it is larger than the sum of its proper divisors (1).

373649663 is an equidigital number, since it uses as much as digits as its factorization.

373649663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 47.

The square root of 373649663 is about 19330.0197361513. The cubic root of 373649663 is about 720.2581783730.

The spelling of 373649663 in words is "three hundred seventy-three million, six hundred forty-nine thousand, six hundred sixty-three".