73909799 has 4 divisors (see below), whose sum is σ = 74922336. Its totient is φ = 72897264.

The previous prime is 73909789. The next prime is 73909853. The reversal of 73909799 is 99790937.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73909799 is a prime.

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 73909799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73909789) 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, 506159 + ... + 506304.

It is an arithmetic number, because the mean of its divisors is an integer number (18730584).

Almost surely, 2^73909799 is an apocalyptic number.

73909799 is a deficient number, since it is larger than the sum of its proper divisors (1012537).

73909799 is a wasteful number, since it uses less digits than its factorization.

73909799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012536.

The product of its (nonzero) digits is 964467, while the sum is 53.

The square root of 73909799 is about 8597.0808417741. The cubic root of 73909799 is about 419.6629930753.

The spelling of 73909799 in words is "seventy-three million, nine hundred nine thousand, seven hundred ninety-nine".