86020261 has 4 divisors (see below), whose sum is σ = 86275852. Its totient is φ = 85764672.

The previous prime is 86020241. The next prime is 86020267. The reversal of 86020261 is 16202068.

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 56535361 + 29484900 = 7519^2 + 5430^2 .

It is a cyclic number.

It is not a de Polignac number, because 86020261 - 2⁵ = 86020229 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 (86020267) 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, 127290 + ... + 127963.

It is an arithmetic number, because the mean of its divisors is an integer number (21568963).

Almost surely, 2^86020261 is an apocalyptic number.

It is an amenable number.

86020261 is a deficient number, since it is larger than the sum of its proper divisors (255591).

86020261 is a wasteful number, since it uses less digits than its factorization.

86020261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255590.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 86020261 is about 9274.7108310718. The cubic root of 86020261 is about 441.4351571482.

The spelling of 86020261 in words is "eighty-six million, twenty thousand, two hundred sixty-one".