73320001 has 2 divisors, whose sum is σ = 73320002. Its totient is φ = 73320000.

The previous prime is 73319999. The next prime is 73320017. The reversal of 73320001 is 10002337.

It is an a-pointer prime, because the next prime (73320017) can be obtained adding 73320001 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70963776 + 2356225 = 8424^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 73320001 - 2¹ = 73319999 is a prime.

Together with 73319999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73320061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36660000 + 36660001.

It is an arithmetic number, because the mean of its divisors is an integer number (36660001).

Almost surely, 2^73320001 is an apocalyptic number.

It is an amenable number.

73320001 is a deficient number, since it is larger than the sum of its proper divisors (1).

73320001 is an equidigital number, since it uses as much as digits as its factorization.

73320001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 73320001 is about 8562.7099098358. The cubic root of 73320001 is about 418.5437110902.

Adding to 73320001 its reverse (10002337), we get a palindrome (83322338).

The spelling of 73320001 in words is "seventy-three million, three hundred twenty thousand, one".