74603869 has 2 divisors, whose sum is σ = 74603870. Its totient is φ = 74603868.

The previous prime is 74603857. The next prime is 74603891. The reversal of 74603869 is 96830647.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71199844 + 3404025 = 8438^2 + 1845^2 .

It is an emirp because it is prime and its reverse (96830647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74603869 - 2⁷ = 74603741 is a prime.

It is a super-2 number, since 2×74603869² = 11131474539538322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74603819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37301934 + 37301935.

It is an arithmetic number, because the mean of its divisors is an integer number (37301935).

Almost surely, 2^74603869 is an apocalyptic number.

It is an amenable number.

74603869 is a deficient number, since it is larger than the sum of its proper divisors (1).

74603869 is an equidigital number, since it uses as much as digits as its factorization.

74603869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 74603869 is about 8637.3531246557. The cubic root of 74603869 is about 420.9725553507.

The spelling of 74603869 in words is "seventy-four million, six hundred three thousand, eight hundred sixty-nine".