47690249 has 2 divisors, whose sum is σ = 47690250. Its totient is φ = 47690248.

The previous prime is 47690213. The next prime is 47690263. The reversal of 47690249 is 94209674.

47690249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30880249 + 16810000 = 5557^2 + 4100^2 .

It is a cyclic number.

It is not a de Polignac number, because 47690249 - 2²⁴ = 30913033 is a prime.

It is not a weakly prime, because it can be changed into another prime (47690849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23845124 + 23845125.

It is an arithmetic number, because the mean of its divisors is an integer number (23845125).

Almost surely, 2^47690249 is an apocalyptic number.

It is an amenable number.

47690249 is a deficient number, since it is larger than the sum of its proper divisors (1).

47690249 is an equidigital number, since it uses as much as digits as its factorization.

47690249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 47690249 is about 6905.8126965622. The cubic root of 47690249 is about 362.6406879993.

The spelling of 47690249 in words is "forty-seven million, six hundred ninety thousand, two hundred forty-nine".