74644699 has 2 divisors, whose sum is σ = 74644700. Its totient is φ = 74644698.

The previous prime is 74644693. The next prime is 74644721. The reversal of 74644699 is 99644647.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (99644647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74644699 - 2⁷ = 74644571 is a prime.

It is not a weakly prime, because it can be changed into another prime (74644693) 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, 37322349 + 37322350.

It is an arithmetic number, because the mean of its divisors is an integer number (37322350).

Almost surely, 2^74644699 is an apocalyptic number.

74644699 is a deficient number, since it is larger than the sum of its proper divisors (1).

74644699 is an equidigital number, since it uses as much as digits as its factorization.

74644699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The square root of 74644699 is about 8639.7163726595. The cubic root of 74644699 is about 421.0493394592.

The spelling of 74644699 in words is "seventy-four million, six hundred forty-four thousand, six hundred ninety-nine".