73745537 has 2 divisors, whose sum is σ = 73745538. Its totient is φ = 73745536.

The previous prime is 73745527. The next prime is 73745587. The reversal of 73745537 is 73554737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58308496 + 15437041 = 7636^2 + 3929^2 .

It is a cyclic number.

It is not a de Polignac number, because 73745537 - 2²⁴ = 56968321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73745494 and 73745503.

It is not a weakly prime, because it can be changed into another prime (73745527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36872768 + 36872769.

It is an arithmetic number, because the mean of its divisors is an integer number (36872769).

Almost surely, 2^73745537 is an apocalyptic number.

It is an amenable number.

73745537 is a deficient number, since it is larger than the sum of its proper divisors (1).

73745537 is an equidigital number, since it uses as much as digits as its factorization.

73745537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 308700, while the sum is 41.

The square root of 73745537 is about 8587.5221688215. The cubic root of 73745537 is about 419.3518669235.

The spelling of 73745537 in words is "seventy-three million, seven hundred forty-five thousand, five hundred thirty-seven".