86389649 has 4 divisors (see below), whose sum is σ = 86452800. Its totient is φ = 86326500.

The previous prime is 86389609. The next prime is 86389669. The reversal of 86389649 is 94698368.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86389649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86389649.

It is not an unprimeable number, because it can be changed into a prime (86389609) 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, 29477 + ... + 32274.

It is an arithmetic number, because the mean of its divisors is an integer number (21613200).

Almost surely, 2^86389649 is an apocalyptic number.

It is an amenable number.

86389649 is a deficient number, since it is larger than the sum of its proper divisors (63151).

86389649 is a wasteful number, since it uses less digits than its factorization.

86389649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63150.

The product of its digits is 2239488, while the sum is 53.

The square root of 86389649 is about 9294.6032190729. The cubic root of 86389649 is about 442.0661247753.

The spelling of 86389649 in words is "eighty-six million, three hundred eighty-nine thousand, six hundred forty-nine".