73659749 has 2 divisors, whose sum is σ = 73659750. Its totient is φ = 73659748.

The previous prime is 73659743. The next prime is 73659779. The reversal of 73659749 is 94795637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73650724 + 9025 = 8582^2 + 95^2 .

It is a cyclic number.

It is not a de Polignac number, because 73659749 - 2¹² = 73655653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73659697 and 73659706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73659743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36829874 + 36829875.

It is an arithmetic number, because the mean of its divisors is an integer number (36829875).

Almost surely, 2^73659749 is an apocalyptic number.

It is an amenable number.

73659749 is a deficient number, since it is larger than the sum of its proper divisors (1).

73659749 is an equidigital number, since it uses as much as digits as its factorization.

73659749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 50.

The square root of 73659749 is about 8582.5257937276. The cubic root of 73659749 is about 419.1891934996.

The spelling of 73659749 in words is "seventy-three million, six hundred fifty-nine thousand, seven hundred forty-nine".