86261439 has 8 divisors (see below), whose sum is σ = 125471232. Its totient is φ = 52279640.

The previous prime is 86261429. The next prime is 86261447. The reversal of 86261439 is 93416268.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86261439 - 2⁹ = 86260927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86261397 and 86261406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86261429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306959 + ... + 1307024.

It is an arithmetic number, because the mean of its divisors is an integer number (15683904).

Almost surely, 2^86261439 is an apocalyptic number.

86261439 is a deficient number, since it is larger than the sum of its proper divisors (39209793).

86261439 is a wasteful number, since it uses less digits than its factorization.

86261439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613997.

The product of its digits is 62208, while the sum is 39.

The square root of 86261439 is about 9287.7036451429. The cubic root of 86261439 is about 441.8473278873.

The spelling of 86261439 in words is "eighty-six million, two hundred sixty-one thousand, four hundred thirty-nine".