73687037 has 2 divisors, whose sum is σ = 73687038. Its totient is φ = 73687036.

The previous prime is 73687021. The next prime is 73687049. The reversal of 73687037 is 73078637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68873401 + 4813636 = 8299^2 + 2194^2 .

It is a cyclic number.

It is not a de Polignac number, because 73687037 - 2⁴ = 73687021 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73686985 and 73687003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73687087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36843518 + 36843519.

It is an arithmetic number, because the mean of its divisors is an integer number (36843519).

Almost surely, 2^73687037 is an apocalyptic number.

It is an amenable number.

73687037 is a deficient number, since it is larger than the sum of its proper divisors (1).

73687037 is an equidigital number, since it uses as much as digits as its factorization.

73687037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 73687037 is about 8584.1153883205. The cubic root of 73687037 is about 419.2409514027.

Subtracting from 73687037 its reverse (73078637), we obtain a square (608400 = 780²).

The spelling of 73687037 in words is "seventy-three million, six hundred eighty-seven thousand, thirty-seven".