73263616 has 20 divisors (see below), whose sum is σ = 146385162. Its totient is φ = 36631552.

The previous prime is 73263611. The next prime is 73263661. The reversal of 73263616 is 61636237.

It can be written as a sum of positive squares in only one way, i.e., 72182016 + 1081600 = 8496^2 + 1040^2 .

It is not an unprimeable number, because it can be changed into a prime (73263611) 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, 71035 + ... + 72058.

Almost surely, 2^73263616 is an apocalyptic number.

It is an amenable number.

73263616 is a deficient number, since it is larger than the sum of its proper divisors (73121546).

73263616 is an equidigital number, since it uses as much as digits as its factorization.

73263616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143111 (or 143095 counting only the distinct ones).

The product of its digits is 27216, while the sum is 34.

The square root of 73263616 is about 8559.4168025631. The cubic root of 73263616 is about 418.4363932189.

It can be divided in two parts, 7 and 3263616, that added together give a palindrome (3263623).

The spelling of 73263616 in words is "seventy-three million, two hundred sixty-three thousand, six hundred sixteen".