86043897 has 32 divisors (see below), whose sum is σ = 134184960. Its totient is φ = 54386640.

The previous prime is 86043847. The next prime is 86043929. The reversal of 86043897 is 79834068.

It is a happy number.

86043897 is a `hidden beast` number, since 8 + 604 + 38 + 9 + 7 = 666.

It is not a de Polignac number, because 86043897 - 2¹¹ = 86041849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86043847) 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, 78322 + ... + 79412.

It is an arithmetic number, because the mean of its divisors is an integer number (4193280).

Almost surely, 2^86043897 is an apocalyptic number.

It is an amenable number.

86043897 is a deficient number, since it is larger than the sum of its proper divisors (48141063).

86043897 is a wasteful number, since it uses less digits than its factorization.

86043897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 86043897 is about 9275.9849611780. The cubic root of 86043897 is about 441.4755848558.

The spelling of 86043897 in words is "eighty-six million, forty-three thousand, eight hundred ninety-seven".