47275493 has 2 divisors, whose sum is σ = 47275494. Its totient is φ = 47275492.

The previous prime is 47275483. The next prime is 47275507. The reversal of 47275493 is 39457274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47100769 + 174724 = 6863^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 47275493 - 2¹² = 47271397 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47275493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47275463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23637746 + 23637747.

It is an arithmetic number, because the mean of its divisors is an integer number (23637747).

Almost surely, 2^47275493 is an apocalyptic number.

It is an amenable number.

47275493 is a deficient number, since it is larger than the sum of its proper divisors (1).

47275493 is an equidigital number, since it uses as much as digits as its factorization.

47275493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 47275493 is about 6875.7176352727. The cubic root of 47275493 is about 361.5863456687.

The spelling of 47275493 in words is "forty-seven million, two hundred seventy-five thousand, four hundred ninety-three".