86669501 has 4 divisors (see below), whose sum is σ = 86723100. Its totient is φ = 86615904.

The previous prime is 86669491. The next prime is 86669509. The reversal of 86669501 is 10596668.

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 69322276 + 17347225 = 8326^2 + 4165^2 .

It is a cyclic number.

It is not a de Polignac number, because 86669501 - 2⁶ = 86669437 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 (86669509) 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, 24296 + ... + 27633.

It is an arithmetic number, because the mean of its divisors is an integer number (21680775).

Almost surely, 2^86669501 is an apocalyptic number.

It is an amenable number.

86669501 is a deficient number, since it is larger than the sum of its proper divisors (53599).

86669501 is a wasteful number, since it uses less digits than its factorization.

86669501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53598.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 86669501 is about 9309.6455893874. The cubic root of 86669501 is about 442.5429556010.

The spelling of 86669501 in words is "eighty-six million, six hundred sixty-nine thousand, five hundred one".