47273537 has 2 divisors, whose sum is σ = 47273538. Its totient is φ = 47273536.

The previous prime is 47273519. The next prime is 47273561. The reversal of 47273537 is 73537274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32535616 + 14737921 = 5704^2 + 3839^2 .

It is a cyclic number.

It is not a de Polignac number, because 47273537 - 2¹² = 47269441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47273537.

It is not a weakly prime, because it can be changed into another prime (47203537) 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, 23636768 + 23636769.

It is an arithmetic number, because the mean of its divisors is an integer number (23636769).

Almost surely, 2^47273537 is an apocalyptic number.

It is an amenable number.

47273537 is a deficient number, since it is larger than the sum of its proper divisors (1).

47273537 is an equidigital number, since it uses as much as digits as its factorization.

47273537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 38.

The square root of 47273537 is about 6875.5753941034. The cubic root of 47273537 is about 361.5813587815.

The spelling of 47273537 in words is "forty-seven million, two hundred seventy-three thousand, five hundred thirty-seven".