86621141 has 4 divisors (see below), whose sum is σ = 88464192. Its totient is φ = 84778092.

The previous prime is 86621131. The next prime is 86621153. The reversal of 86621141 is 14112668.

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 not a de Polignac number, because 86621141 - 2⁶ = 86621077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86621131) 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, 921455 + ... + 921548.

It is an arithmetic number, because the mean of its divisors is an integer number (22116048).

Almost surely, 2^86621141 is an apocalyptic number.

It is an amenable number.

86621141 is a deficient number, since it is larger than the sum of its proper divisors (1843051).

86621141 is a wasteful number, since it uses less digits than its factorization.

86621141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843050.

The product of its digits is 2304, while the sum is 29.

The square root of 86621141 is about 9307.0479207964. The cubic root of 86621141 is about 442.4606299891.

The spelling of 86621141 in words is "eighty-six million, six hundred twenty-one thousand, one hundred forty-one".