73864501 has 2 divisors, whose sum is σ = 73864502. Its totient is φ = 73864500.

The previous prime is 73864499. The next prime is 73864517. The reversal of 73864501 is 10546837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44542276 + 29322225 = 6674^2 + 5415^2 .

It is a cyclic number.

It is not a de Polignac number, because 73864501 - 2¹ = 73864499 is a prime.

Together with 73864499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73867501) 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 as a sum of consecutive naturals, namely, 36932250 + 36932251.

It is an arithmetic number, because the mean of its divisors is an integer number (36932251).

Almost surely, 2^73864501 is an apocalyptic number.

It is an amenable number.

73864501 is a deficient number, since it is larger than the sum of its proper divisors (1).

73864501 is an equidigital number, since it uses as much as digits as its factorization.

73864501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 73864501 is about 8594.4459390935. The cubic root of 73864501 is about 419.5772408952.

The spelling of 73864501 in words is "seventy-three million, eight hundred sixty-four thousand, five hundred one".