47339489 has 2 divisors, whose sum is σ = 47339490. Its totient is φ = 47339488.

The previous prime is 47339483. The next prime is 47339503. The reversal of 47339489 is 98493374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44422225 + 2917264 = 6665^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 47339489 - 2²⁰ = 46290913 is a prime.

It is a super-2 number, since 2×47339489² = 4482054437562242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47339483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23669744 + 23669745.

It is an arithmetic number, because the mean of its divisors is an integer number (23669745).

Almost surely, 2^47339489 is an apocalyptic number.

It is an amenable number.

47339489 is a deficient number, since it is larger than the sum of its proper divisors (1).

47339489 is an equidigital number, since it uses as much as digits as its factorization.

47339489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 47339489 is about 6880.3698301763. The cubic root of 47339489 is about 361.7494297863.

The spelling of 47339489 in words is "forty-seven million, three hundred thirty-nine thousand, four hundred eighty-nine".