47111489 has 2 divisors, whose sum is σ = 47111490. Its totient is φ = 47111488.

The previous prime is 47111417. The next prime is 47111503. The reversal of 47111489 is 98411174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46471489 + 640000 = 6817^2 + 800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47111489 is a prime.

It is not a weakly prime, because it can be changed into another prime (47113489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23555744 + 23555745.

It is an arithmetic number, because the mean of its divisors is an integer number (23555745).

Almost surely, 2^47111489 is an apocalyptic number.

It is an amenable number.

47111489 is a deficient number, since it is larger than the sum of its proper divisors (1).

47111489 is an equidigital number, since it uses as much as digits as its factorization.

47111489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 47111489 is about 6863.7809551296. The cubic root of 47111489 is about 361.1677333294.

The spelling of 47111489 in words is "forty-seven million, one hundred eleven thousand, four hundred eighty-nine".