86649263 has 4 divisors (see below), whose sum is σ = 86682240. Its totient is φ = 86616288.

The previous prime is 86649239. The next prime is 86649271. The reversal of 86649263 is 36294668.

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

It is a cyclic number.

It is not a de Polignac number, because 86649263 - 2¹⁶ = 86583727 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 (86649203) 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, 12170 + ... + 17927.

It is an arithmetic number, because the mean of its divisors is an integer number (21670560).

Almost surely, 2^86649263 is an apocalyptic number.

86649263 is a deficient number, since it is larger than the sum of its proper divisors (32977).

86649263 is a wasteful number, since it uses less digits than its factorization.

86649263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32976.

The product of its digits is 373248, while the sum is 44.

The square root of 86649263 is about 9308.5585887397. The cubic root of 86649263 is about 442.5085071832.

The spelling of 86649263 in words is "eighty-six million, six hundred forty-nine thousand, two hundred sixty-three".