86944943 has 2 divisors, whose sum is σ = 86944944.
Its totient is φ = 86944942.
The previous prime is 86944939. The next prime is 86944961. The reversal of 86944943 is 34944968.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 86944943 - 22 = 86944939 is a prime.
It is a super-2 number, since 2×869449432 = 15118846226546498, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (86944933) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43472471 + 43472472.
It is an arithmetic number, because the mean of its divisors is an integer number (43472472).
Almost surely, 286944943 is an apocalyptic number.
86944943 is a deficient number, since it is larger than the sum of its proper divisors (1).
86944943 is an equidigital number, since it uses as much as digits as its factorization.
86944943 is an evil number, because the sum of its binary digits is even.
The product of its digits is 746496, while the sum is 47.
The square root of 86944943 is about 9324.4272210147.
The cubic root of 86944943 is about 443.0112711082.
The spelling of 86944943 in words is "eighty-six million, nine hundred forty-four thousand, nine hundred forty-three".