73999771 has 8 divisors (see below), whose sum is σ = 75963888. Its totient is φ = 72060000.

The previous prime is 73999753. The next prime is 73999777. The reversal of 73999771 is 17799937.

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 73999771 - 2⁷ = 73999643 is a prime.

It is a super-2 number, since 2×73999771² = 10951932216104882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73999777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156 + ... + 12166.

It is an arithmetic number, because the mean of its divisors is an integer number (9495486).

Almost surely, 2^73999771 is an apocalyptic number.

73999771 is a deficient number, since it is larger than the sum of its proper divisors (1964117).

73999771 is a wasteful number, since it uses less digits than its factorization.

73999771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12173.

The product of its digits is 750141, while the sum is 52.

The square root of 73999771 is about 8602.3119566777. The cubic root of 73999771 is about 419.8332123088.

The spelling of 73999771 in words is "seventy-three million, nine hundred ninety-nine thousand, seven hundred seventy-one".