73320651 has 12 divisors (see below), whose sum is σ = 107000712. Its totient is φ = 48375936.

The previous prime is 73320641. The next prime is 73320661. The reversal of 73320651 is 15602337.

It is a happy number.

73320651 is a `hidden beast` number, since 7 + 3 + 3 + 2 + 0 + 651 = 666.

It is an interprime number because it is at equal distance from previous prime (73320641) and next prime (73320661).

It is not a de Polignac number, because 73320651 - 2⁹ = 73320139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73320641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41121 + ... + 42866.

It is an arithmetic number, because the mean of its divisors is an integer number (8916726).

Almost surely, 2^73320651 is an apocalyptic number.

73320651 is a deficient number, since it is larger than the sum of its proper divisors (33680061).

73320651 is a wasteful number, since it uses less digits than its factorization.

73320651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84090 (or 84087 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 73320651 is about 8562.7478650256. The cubic root of 73320651 is about 418.5449479179.

Adding to 73320651 its reverse (15602337), we get a palindrome (88922988).

The spelling of 73320651 in words is "seventy-three million, three hundred twenty thousand, six hundred fifty-one".