73967137 has 2 divisors, whose sum is σ = 73967138. Its totient is φ = 73967136.

The previous prime is 73967111. The next prime is 73967167. The reversal of 73967137 is 73176937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73942801 + 24336 = 8599^2 + 156^2 .

It is an emirp because it is prime and its reverse (73176937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73967137 - 2²³ = 65578529 is a prime.

It is a super-2 number, since 2×73967137² = 10942274711953538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73967093 and 73967102.

It is not a weakly prime, because it can be changed into another prime (73967167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36983568 + 36983569.

It is an arithmetic number, because the mean of its divisors is an integer number (36983569).

Almost surely, 2^73967137 is an apocalyptic number.

It is an amenable number.

73967137 is a deficient number, since it is larger than the sum of its proper divisors (1).

73967137 is an equidigital number, since it uses as much as digits as its factorization.

73967137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 166698, while the sum is 43.

The square root of 73967137 is about 8600.4149318507. The cubic root of 73967137 is about 419.7714875611.

It can be divided in two parts, 739 and 67137, that added together give a palindrome (67876).

The spelling of 73967137 in words is "seventy-three million, nine hundred sixty-seven thousand, one hundred thirty-seven".