73899743 has 8 divisors (see below), whose sum is σ = 76939680. Its totient is φ = 70892640.

The previous prime is 73899733. The next prime is 73899751. The reversal of 73899743 is 34799837.

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 73899743 - 2²² = 69705439 is a prime.

It is a super-2 number, since 2×73899743² = 10922344030932098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73899691 and 73899700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73899733) 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, 3563 + ... + 12668.

It is an arithmetic number, because the mean of its divisors is an integer number (9617460).

Almost surely, 2^73899743 is an apocalyptic number.

73899743 is a deficient number, since it is larger than the sum of its proper divisors (3039937).

73899743 is a wasteful number, since it uses less digits than its factorization.

73899743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16417.

The product of its digits is 1143072, while the sum is 50.

The square root of 73899743 is about 8596.4959721970. The cubic root of 73899743 is about 419.6439594130.

The spelling of 73899743 in words is "seventy-three million, eight hundred ninety-nine thousand, seven hundred forty-three".