86435977 has 4 divisors (see below), whose sum is σ = 88446160. Its totient is φ = 84425796.

The previous prime is 86435969. The next prime is 86435981. The reversal of 86435977 is 77953468.

It is a happy number.

86435977 is nontrivially palindromic in base 6.

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 86435977 - 2³ = 86435969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86435977.

It is not an unprimeable number, because it can be changed into a prime (86435927) 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, 1005027 + ... + 1005112.

It is an arithmetic number, because the mean of its divisors is an integer number (22111540).

Almost surely, 2^86435977 is an apocalyptic number.

It is an amenable number.

86435977 is a deficient number, since it is larger than the sum of its proper divisors (2010183).

86435977 is a wasteful number, since it uses less digits than its factorization.

86435977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010182.

The product of its digits is 1270080, while the sum is 49.

The square root of 86435977 is about 9297.0950839496. The cubic root of 86435977 is about 442.1451326187.

The spelling of 86435977 in words is "eighty-six million, four hundred thirty-five thousand, nine hundred seventy-seven".