86180477 has 4 divisors (see below), whose sum is σ = 87218880. Its totient is φ = 85142076.

The previous prime is 86180473. The next prime is 86180503. The reversal of 86180477 is 77408168.

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 86180477 - 2² = 86180473 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 (86180473) 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, 519077 + ... + 519242.

It is an arithmetic number, because the mean of its divisors is an integer number (21804720).

Almost surely, 2^86180477 is an apocalyptic number.

It is an amenable number.

86180477 is a deficient number, since it is larger than the sum of its proper divisors (1038403).

86180477 is a wasteful number, since it uses less digits than its factorization.

86180477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038402.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 86180477 is about 9283.3440634289. The cubic root of 86180477 is about 441.7090504162.

The spelling of 86180477 in words is "eighty-six million, one hundred eighty thousand, four hundred seventy-seven".