74536663 has 2 divisors, whose sum is σ = 74536664. Its totient is φ = 74536662.

The previous prime is 74536661. The next prime is 74536667. The reversal of 74536663 is 36663547.

It is a weak prime.

It is an emirp because it is prime and its reverse (36663547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74536663 - 2¹ = 74536661 is a prime.

Together with 74536661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74536661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37268331 + 37268332.

It is an arithmetic number, because the mean of its divisors is an integer number (37268332).

Almost surely, 2^74536663 is an apocalyptic number.

74536663 is a deficient number, since it is larger than the sum of its proper divisors (1).

74536663 is an equidigital number, since it uses as much as digits as its factorization.

74536663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 40.

The square root of 74536663 is about 8633.4618201507. The cubic root of 74536663 is about 420.8461080155.

The spelling of 74536663 in words is "seventy-four million, five hundred thirty-six thousand, six hundred sixty-three".