73642741 has 2 divisors, whose sum is σ = 73642742. Its totient is φ = 73642740.

The previous prime is 73642739. The next prime is 73642753. The reversal of 73642741 is 14724637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52620516 + 21022225 = 7254^2 + 4585^2 .

It is an emirp because it is prime and its reverse (14724637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73642741 - 2¹ = 73642739 is a prime.

Together with 73642739, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 73642697 and 73642706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73642771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36821370 + 36821371.

It is an arithmetic number, because the mean of its divisors is an integer number (36821371).

Almost surely, 2^73642741 is an apocalyptic number.

It is an amenable number.

73642741 is a deficient number, since it is larger than the sum of its proper divisors (1).

73642741 is an equidigital number, since it uses as much as digits as its factorization.

73642741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 34.

The square root of 73642741 is about 8581.5348860213. The cubic root of 73642741 is about 419.1569274895.

The spelling of 73642741 in words is "seventy-three million, six hundred forty-two thousand, seven hundred forty-one".