86436477 has 40 divisors (see below), whose sum is σ = 134188032. Its totient is φ = 55404000.

The previous prime is 86436457. The next prime is 86436479. The reversal of 86436477 is 77463468.

It is not a de Polignac number, because 86436477 - 2²³ = 78047869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86436479) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 452452 + ... + 452642.

Almost surely, 2^86436477 is an apocalyptic number.

It is an amenable number.

86436477 is a deficient number, since it is larger than the sum of its proper divisors (47751555).

86436477 is a wasteful number, since it uses less digits than its factorization.

86436477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 382 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 86436477 is about 9297.1219740305. The cubic root of 86436477 is about 442.1459851655.

The spelling of 86436477 in words is "eighty-six million, four hundred thirty-six thousand, four hundred seventy-seven".