73220497 has 8 divisors (see below), whose sum is σ = 84422016. Its totient is φ = 62204352.

The previous prime is 73220491. The next prime is 73220551. The reversal of 73220497 is 79402237.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-73220497 is a prime.

It is a super-2 number, since 2×73220497² = 10722482361854018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73220491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45493 + ... + 47074.

It is an arithmetic number, because the mean of its divisors is an integer number (10552752).

Almost surely, 2^73220497 is an apocalyptic number.

It is an amenable number.

73220497 is a deficient number, since it is larger than the sum of its proper divisors (11201519).

73220497 is a wasteful number, since it uses less digits than its factorization.

73220497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92687.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 73220497 is about 8556.8976270609. The cubic root of 73220497 is about 418.3542874361.

The spelling of 73220497 in words is "seventy-three million, two hundred twenty thousand, four hundred ninety-seven".