89477147 has 2 divisors, whose sum is σ = 89477148. Its totient is φ = 89477146.

The previous prime is 89477131. The next prime is 89477149. The reversal of 89477147 is 74177498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89477147 - 2⁴ = 89477131 is a prime.

Together with 89477149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89477149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44738573 + 44738574.

It is an arithmetic number, because the mean of its divisors is an integer number (44738574).

Almost surely, 2^89477147 is an apocalyptic number.

89477147 is a deficient number, since it is larger than the sum of its proper divisors (1).

89477147 is an equidigital number, since it uses as much as digits as its factorization.

89477147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 47.

The square root of 89477147 is about 9459.2360685205. The cubic root of 89477147 is about 447.2709679727.

The spelling of 89477147 in words is "eighty-nine million, four hundred seventy-seven thousand, one hundred forty-seven".