73644463 has 2 divisors, whose sum is σ = 73644464. Its totient is φ = 73644462.

The previous prime is 73644421. The next prime is 73644469. The reversal of 73644463 is 36444637.

It is a strong prime.

It is an emirp because it is prime and its reverse (36444637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73644463 - 2⁹ = 73643951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73644469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36822231 + 36822232.

It is an arithmetic number, because the mean of its divisors is an integer number (36822232).

Almost surely, 2^73644463 is an apocalyptic number.

73644463 is a deficient number, since it is larger than the sum of its proper divisors (1).

73644463 is an equidigital number, since it uses as much as digits as its factorization.

73644463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 37.

The square root of 73644463 is about 8581.6352171367. The cubic root of 73644463 is about 419.1601945352.

The spelling of 73644463 in words is "seventy-three million, six hundred forty-four thousand, four hundred sixty-three".