86895973 has 4 divisors (see below), whose sum is σ = 87049260. Its totient is φ = 86742688.

The previous prime is 86895947. The next prime is 86896003. The reversal of 86895973 is 37959868.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47983329 + 38912644 = 6927^2 + 6238^2 .

It is a cyclic number.

It is not a de Polignac number, because 86895973 - 2²¹ = 84798821 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 (86895923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75790 + ... + 76927.

It is an arithmetic number, because the mean of its divisors is an integer number (21762315).

Almost surely, 2^86895973 is an apocalyptic number.

It is an amenable number.

86895973 is a deficient number, since it is larger than the sum of its proper divisors (153287).

86895973 is a wasteful number, since it uses less digits than its factorization.

86895973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153286.

The product of its digits is 3265920, while the sum is 55.

The square root of 86895973 is about 9321.8009526057. The cubic root of 86895973 is about 442.9280830760.

The spelling of 86895973 in words is "eighty-six million, eight hundred ninety-five thousand, nine hundred seventy-three".