74051869 has 2 divisors, whose sum is σ = 74051870. Its totient is φ = 74051868.

The previous prime is 74051851. The next prime is 74051897. The reversal of 74051869 is 96815047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59876644 + 14175225 = 7738^2 + 3765^2 .

It is a cyclic number.

It is not a de Polignac number, because 74051869 - 2⁹ = 74051357 is a prime.

It is a super-2 number, since 2×74051869² = 10967358604786322, 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 (74051849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37025934 + 37025935.

It is an arithmetic number, because the mean of its divisors is an integer number (37025935).

Almost surely, 2^74051869 is an apocalyptic number.

It is an amenable number.

74051869 is a deficient number, since it is larger than the sum of its proper divisors (1).

74051869 is an equidigital number, since it uses as much as digits as its factorization.

74051869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 74051869 is about 8605.3395633176. The cubic root of 74051869 is about 419.9317141440.

The spelling of 74051869 in words is "seventy-four million, fifty-one thousand, eight hundred sixty-nine".