73631761 has 6 divisors (see below), whose sum is σ = 85653330. Its totient is φ = 63112896.

The previous prime is 73631749. The next prime is 73631843. The reversal of 73631761 is 16713637.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52287361 + 21344400 = 7231^2 + 4620^2 .

It is not a de Polignac number, because 73631761 - 2¹¹ = 73629713 is a prime.

It is a super-2 number, since 2×73631761² = 10843272455922242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73631161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 751296 + ... + 751393.

It is an arithmetic number, because the mean of its divisors is an integer number (14275555).

Almost surely, 2^73631761 is an apocalyptic number.

It is an amenable number.

73631761 is a deficient number, since it is larger than the sum of its proper divisors (12021569).

73631761 is a wasteful number, since it uses less digits than its factorization.

73631761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502703 (or 1502696 counting only the distinct ones).

The product of its digits is 15876, while the sum is 34.

The square root of 73631761 is about 8580.8951164782. The cubic root of 73631761 is about 419.1360946065.

The spelling of 73631761 in words is "seventy-three million, six hundred thirty-one thousand, seven hundred sixty-one".