73406453 has 8 divisors (see below), whose sum is σ = 76102200. Its totient is φ = 70721728.

The previous prime is 73406447. The next prime is 73406467. The reversal of 73406453 is 35460437.

It can be written as a sum of positive squares in 4 ways, for example, as 26853124 + 46553329 = 5182^2 + 6823^2 .

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 73406453 - 2¹⁴ = 73390069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73406423) 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, 12275 + ... + 17247.

It is an arithmetic number, because the mean of its divisors is an integer number (9512775).

Almost surely, 2^73406453 is an apocalyptic number.

It is an amenable number.

73406453 is a deficient number, since it is larger than the sum of its proper divisors (2695747).

73406453 is a wasteful number, since it uses less digits than its factorization.

73406453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 73406453 is about 8567.7565908469. The cubic root of 73406453 is about 418.7081488433.

The spelling of 73406453 in words is "seventy-three million, four hundred six thousand, four hundred fifty-three".