73455869 has 8 divisors (see below), whose sum is σ = 76775160. Its totient is φ = 70189056.

The previous prime is 73455857. The next prime is 73455947. The reversal of 73455869 is 96855437.

It can be written as a sum of positive squares in 4 ways, for example, as 13579225 + 59876644 = 3685^2 + 7738^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73455869 - 2⁴ = 73455853 is a prime.

It is a super-2 number, since 2×73455869² = 10791529381090322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73455829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10244 + ... + 15869.

It is an arithmetic number, because the mean of its divisors is an integer number (9596895).

Almost surely, 2^73455869 is an apocalyptic number.

It is an amenable number.

73455869 is a deficient number, since it is larger than the sum of its proper divisors (3319291).

73455869 is a wasteful number, since it uses less digits than its factorization.

73455869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26239.

The product of its digits is 907200, while the sum is 47.

The square root of 73455869 is about 8570.6399411012. The cubic root of 73455869 is about 418.8020835491.

The spelling of 73455869 in words is "seventy-three million, four hundred fifty-five thousand, eight hundred sixty-nine".