73779841 has 2 divisors, whose sum is σ = 73779842. Its totient is φ = 73779840.

The previous prime is 73779833. The next prime is 73779851. The reversal of 73779841 is 14897737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72931600 + 848241 = 8540^2 + 921^2 .

It is a cyclic number.

It is not a de Polignac number, because 73779841 - 2³ = 73779833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73779791 and 73779800.

It is not a weakly prime, because it can be changed into another prime (73779821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36889920 + 36889921.

It is an arithmetic number, because the mean of its divisors is an integer number (36889921).

Almost surely, 2^73779841 is an apocalyptic number.

It is an amenable number.

73779841 is a deficient number, since it is larger than the sum of its proper divisors (1).

73779841 is an equidigital number, since it uses as much as digits as its factorization.

73779841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 46.

The square root of 73779841 is about 8589.5192531363. The cubic root of 73779841 is about 419.4168797457.

The spelling of 73779841 in words is "seventy-three million, seven hundred seventy-nine thousand, eight hundred forty-one".