74669999 has 2 divisors, whose sum is σ = 74670000. Its totient is φ = 74669998.

The previous prime is 74669993. The next prime is 74670017. The reversal of 74669999 is 99996647.

It is a weak prime.

It is an emirp because it is prime and its reverse (99996647) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74669999 is a prime.

74669999 is a modest number, since divided by 9999 gives 7466 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74669993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37334999 + 37335000.

It is an arithmetic number, because the mean of its divisors is an integer number (37335000).

Almost surely, 2^74669999 is an apocalyptic number.

74669999 is a deficient number, since it is larger than the sum of its proper divisors (1).

74669999 is an equidigital number, since it uses as much as digits as its factorization.

74669999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6613488, while the sum is 59.

The square root of 74669999 is about 8641.1804170495. The cubic root of 74669999 is about 421.0969041005.

The spelling of 74669999 in words is "seventy-four million, six hundred sixty-nine thousand, nine hundred ninety-nine".