74750789 has 2 divisors, whose sum is σ = 74750790. Its totient is φ = 74750788.

The previous prime is 74750773. The next prime is 74750801. The reversal of 74750789 is 98705747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64240225 + 10510564 = 8015^2 + 3242^2 .

It is a cyclic number.

It is not a de Polignac number, because 74750789 - 2⁴ = 74750773 is a prime.

It is a super-2 number, since 2×74750789² = 11175360912245042, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74750189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37375394 + 37375395.

It is an arithmetic number, because the mean of its divisors is an integer number (37375395).

Almost surely, 2^74750789 is an apocalyptic number.

It is an amenable number.

74750789 is a deficient number, since it is larger than the sum of its proper divisors (1).

74750789 is an equidigital number, since it uses as much as digits as its factorization.

74750789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 74750789 is about 8645.8538618230. The cubic root of 74750789 is about 421.2487194530.

The spelling of 74750789 in words is "seventy-four million, seven hundred fifty thousand, seven hundred eighty-nine".