73641583 has 2 divisors, whose sum is σ = 73641584. Its totient is φ = 73641582.

The previous prime is 73641571. The next prime is 73641613. The reversal of 73641583 is 38514637.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73641583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73641553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36820791 + 36820792.

It is an arithmetic number, because the mean of its divisors is an integer number (36820792).

Almost surely, 2^73641583 is an apocalyptic number.

73641583 is a deficient number, since it is larger than the sum of its proper divisors (1).

73641583 is an equidigital number, since it uses as much as digits as its factorization.

73641583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 73641583 is about 8581.4674153084. The cubic root of 73641583 is about 419.1547304580.

The spelling of 73641583 in words is "seventy-three million, six hundred forty-one thousand, five hundred eighty-three".