73638833 has 4 divisors (see below), whose sum is σ = 75351408. Its totient is φ = 71926260.

The previous prime is 73638793. The next prime is 73638839. The reversal of 73638833 is 33883637.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33883637 = 2659 ⋅12743.

It is a cyclic number.

It is not a de Polignac number, because 73638833 - 2¹⁴ = 73622449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73638839) 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 3 ways as a sum of consecutive naturals, for example, 856223 + ... + 856308.

It is an arithmetic number, because the mean of its divisors is an integer number (18837852).

Almost surely, 2^73638833 is an apocalyptic number.

It is an amenable number.

73638833 is a deficient number, since it is larger than the sum of its proper divisors (1712575).

73638833 is a wasteful number, since it uses less digits than its factorization.

73638833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712574.

The product of its digits is 217728, while the sum is 41.

The square root of 73638833 is about 8581.3071848058. The cubic root of 73638833 is about 419.1495128902.

The spelling of 73638833 in words is "seventy-three million, six hundred thirty-eight thousand, eight hundred thirty-three".