73899403 has 4 divisors (see below), whose sum is σ = 73925568. Its totient is φ = 73873240.

The previous prime is 73899389. The next prime is 73899421. The reversal of 73899403 is 30499837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30499837 = 373 ⋅81769.

It is a cyclic number.

It is not a de Polignac number, because 73899403 - 2²⁵ = 40344971 is a prime.

It is a super-2 number, since 2×73899403² = 10922243527512818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73899403.

It is not an unprimeable number, because it can be changed into a prime (73899503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8251 + ... + 14692.

It is an arithmetic number, because the mean of its divisors is an integer number (18481392).

Almost surely, 2^73899403 is an apocalyptic number.

73899403 is a deficient number, since it is larger than the sum of its proper divisors (26165).

73899403 is a wasteful number, since it uses less digits than its factorization.

73899403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26164.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 73899403 is about 8596.4761966750. The cubic root of 73899403 is about 419.6433158421.

The spelling of 73899403 in words is "seventy-three million, eight hundred ninety-nine thousand, four hundred three".