43463897 has 2 divisors, whose sum is σ = 43463898. Its totient is φ = 43463896.

The previous prime is 43463881. The next prime is 43463939. The reversal of 43463897 is 79836434.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37258816 + 6205081 = 6104^2 + 2491^2 .

It is a cyclic number.

It is not a de Polignac number, because 43463897 - 2⁴ = 43463881 is a prime.

It is a super-2 number, since 2×43463897² = 3778220684853218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43463807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21731948 + 21731949.

It is an arithmetic number, because the mean of its divisors is an integer number (21731949).

Almost surely, 2^43463897 is an apocalyptic number.

It is an amenable number.

43463897 is a deficient number, since it is larger than the sum of its proper divisors (1).

43463897 is an equidigital number, since it uses as much as digits as its factorization.

43463897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 44.

The square root of 43463897 is about 6592.7154496459. The cubic root of 43463897 is about 351.5951596734.

The spelling of 43463897 in words is "forty-three million, four hundred sixty-three thousand, eight hundred ninety-seven".