43481697 has 32 divisors (see below), whose sum is σ = 68815872. Its totient is φ = 23903424.

The previous prime is 43481693. The next prime is 43481731. The reversal of 43481697 is 79618434.

It is not a de Polignac number, because 43481697 - 2² = 43481693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43481693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82878 + ... + 83400.

It is an arithmetic number, because the mean of its divisors is an integer number (2150496).

Almost surely, 2^43481697 is an apocalyptic number.

It is an amenable number.

43481697 is a deficient number, since it is larger than the sum of its proper divisors (25334175).

43481697 is a wasteful number, since it uses less digits than its factorization.

43481697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 145152, while the sum is 42.

The square root of 43481697 is about 6594.0652863010. The cubic root of 43481697 is about 351.6431499988.

The spelling of 43481697 in words is "forty-three million, four hundred eighty-one thousand, six hundred ninety-seven".