73288669 has 2 divisors, whose sum is σ = 73288670. Its totient is φ = 73288668.

The previous prime is 73288661. The next prime is 73288693. The reversal of 73288669 is 96688237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69939769 + 3348900 = 8363^2 + 1830^2 .

It is an emirp because it is prime and its reverse (96688237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73288669 - 2³ = 73288661 is a prime.

It is a super-2 number, since 2×73288669² = 10742458007583122, 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 (73288661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36644334 + 36644335.

It is an arithmetic number, because the mean of its divisors is an integer number (36644335).

Almost surely, 2^73288669 is an apocalyptic number.

It is an amenable number.

73288669 is a deficient number, since it is larger than the sum of its proper divisors (1).

73288669 is an equidigital number, since it uses as much as digits as its factorization.

73288669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 73288669 is about 8560.8801533487. The cubic root of 73288669 is about 418.4840835225.

It can be divided in two parts, 732 and 88669, that added together give a square (89401 = 299²).

The spelling of 73288669 in words is "seventy-three million, two hundred eighty-eight thousand, six hundred sixty-nine".