73220299 has 4 divisors (see below), whose sum is σ = 75199264. Its totient is φ = 71241336.

The previous prime is 73220297. The next prime is 73220311. The reversal of 73220299 is 99202237.

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

It is a cyclic number.

It is not a de Polignac number, because 73220299 - 2¹ = 73220297 is a prime.

It is a super-2 number, since 2×73220299² = 10722424371298802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73220291) 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, 989427 + ... + 989500.

It is an arithmetic number, because the mean of its divisors is an integer number (18799816).

Almost surely, 2^73220299 is an apocalyptic number.

73220299 is a deficient number, since it is larger than the sum of its proper divisors (1978965).

73220299 is a wasteful number, since it uses less digits than its factorization.

73220299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978964.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 73220299 is about 8556.8860574394. The cubic root of 73220299 is about 418.3539103367.

The spelling of 73220299 in words is "seventy-three million, two hundred twenty thousand, two hundred ninety-nine".