86429943 has 8 divisors (see below), whose sum is σ = 128044400. Its totient is φ = 57619944.

The previous prime is 86429939. The next prime is 86429951. The reversal of 86429943 is 34992468.

It is not a de Polignac number, because 86429943 - 2² = 86429939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86429923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600528 + ... + 1600581.

It is an arithmetic number, because the mean of its divisors is an integer number (16005550).

Almost surely, 2^86429943 is an apocalyptic number.

86429943 is a deficient number, since it is larger than the sum of its proper divisors (41614457).

86429943 is a wasteful number, since it uses less digits than its factorization.

86429943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201118 (or 3201112 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 86429943 is about 9296.7705683210. The cubic root of 86429943 is about 442.1348438250.

The spelling of 86429943 in words is "eighty-six million, four hundred twenty-nine thousand, nine hundred forty-three".