86481997 has 8 divisors (see below), whose sum is σ = 101247552. Its totient is φ = 72319200.

The previous prime is 86481991. The next prime is 86482003. The reversal of 86481997 is 79918468.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86481991) and next prime (86482003).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86481997 - 2⁷ = 86481869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86481991) 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, 150379 + ... + 150952.

It is an arithmetic number, because the mean of its divisors is an integer number (12655944).

Almost surely, 2^86481997 is an apocalyptic number.

It is an amenable number.

86481997 is a deficient number, since it is larger than the sum of its proper divisors (14765555).

86481997 is a wasteful number, since it uses less digits than its factorization.

86481997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301379.

The product of its digits is 870912, while the sum is 52.

The square root of 86481997 is about 9299.5697212290. The cubic root of 86481997 is about 442.2235872532.

It can be divided in two parts, 86481 and 997, that added together give a palindrome (87478).

The spelling of 86481997 in words is "eighty-six million, four hundred eighty-one thousand, nine hundred ninety-seven".