73814569 has 2 divisors, whose sum is σ = 73814570. Its totient is φ = 73814568.

The previous prime is 73814557. The next prime is 73814579. The reversal of 73814569 is 96541837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62220544 + 11594025 = 7888^2 + 3405^2 .

It is a cyclic number.

It is not a de Polignac number, because 73814569 - 2¹³ = 73806377 is a prime.

It is a super-2 number, since 2×73814569² = 10897181193311522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73814509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36907284 + 36907285.

It is an arithmetic number, because the mean of its divisors is an integer number (36907285).

Almost surely, 2^73814569 is an apocalyptic number.

It is an amenable number.

73814569 is a deficient number, since it is larger than the sum of its proper divisors (1).

73814569 is an equidigital number, since it uses as much as digits as its factorization.

73814569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 73814569 is about 8591.5405487025. The cubic root of 73814569 is about 419.4826756076.

The spelling of 73814569 in words is "seventy-three million, eight hundred fourteen thousand, five hundred sixty-nine".