73422073 has 8 divisors (see below), whose sum is σ = 74412360. Its totient is φ = 72437760.

The previous prime is 73422067. The next prime is 73422091. The reversal of 73422073 is 37022437.

It can be written as a sum of positive squares in 4 ways, for example, as 52012944 + 21409129 = 7212^2 + 4627^2 .

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 73422073 - 2¹³ = 73413881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73422773) 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, 26703 + ... + 29323.

It is an arithmetic number, because the mean of its divisors is an integer number (9301545).

Almost surely, 2^73422073 is an apocalyptic number.

It is an amenable number.

73422073 is a deficient number, since it is larger than the sum of its proper divisors (990287).

73422073 is a wasteful number, since it uses less digits than its factorization.

73422073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 73422073 is about 8568.6680995357. The cubic root of 73422073 is about 418.7378454035.

The spelling of 73422073 in words is "seventy-three million, four hundred twenty-two thousand, seventy-three".