47774497 has 2 divisors, whose sum is σ = 47774498. Its totient is φ = 47774496.

The previous prime is 47774477. The next prime is 47774549. The reversal of 47774497 is 79447774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35093776 + 12680721 = 5924^2 + 3561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47774497 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 47774497.

It is not a weakly prime, because it can be changed into another prime (47774477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23887248 + 23887249.

It is an arithmetic number, because the mean of its divisors is an integer number (23887249).

Almost surely, 2^47774497 is an apocalyptic number.

It is an amenable number.

47774497 is a deficient number, since it is larger than the sum of its proper divisors (1).

47774497 is an equidigital number, since it uses as much as digits as its factorization.

47774497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382976, while the sum is 49.

The square root of 47774497 is about 6911.9097939716. The cubic root of 47774497 is about 362.8541053497.

The spelling of 47774497 in words is "forty-seven million, seven hundred seventy-four thousand, four hundred ninety-seven".