43676397 has 12 divisors (see below), whose sum is σ = 63177660. Its totient is φ = 29076288.

The previous prime is 43676393. The next prime is 43676401. The reversal of 43676397 is 79367634.

43676397 is a `hidden beast` number, since 4 + 3 + 6 + 7 + 639 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (43676393) and next prime (43676401).

It can be written as a sum of positive squares in 2 ways, for example, as 15256836 + 28419561 = 3906^2 + 5331^2 .

It is not a de Polignac number, because 43676397 - 2² = 43676393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43676393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4129 + ... + 10217.

It is an arithmetic number, because the mean of its divisors is an integer number (5264805).

Almost surely, 2^43676397 is an apocalyptic number.

It is an amenable number.

43676397 is a deficient number, since it is larger than the sum of its proper divisors (19501263).

43676397 is a wasteful number, since it uses less digits than its factorization.

43676397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6892 (or 6889 counting only the distinct ones).

The product of its digits is 571536, while the sum is 45.

The square root of 43676397 is about 6608.8120717721. The cubic root of 43676397 is about 352.1672248009.

The spelling of 43676397 in words is "forty-three million, six hundred seventy-six thousand, three hundred ninety-seven".