86477578 has 8 divisors (see below), whose sum is σ = 141508800. Its totient is φ = 39307980.

The previous prime is 86477563. The next prime is 86477579. The reversal of 86477578 is 87577468.

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

It is not an unprimeable number, because it can be changed into a prime (86477579) 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, 1965378 + ... + 1965421.

It is an arithmetic number, because the mean of its divisors is an integer number (17688600).

Almost surely, 2^86477578 is an apocalyptic number.

86477578 is a deficient number, since it is larger than the sum of its proper divisors (55031222).

86477578 is a wasteful number, since it uses less digits than its factorization.

86477578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930812.

The product of its digits is 2634240, while the sum is 52.

The square root of 86477578 is about 9299.3321265562. The cubic root of 86477578 is about 442.2160549753.

The spelling of 86477578 in words is "eighty-six million, four hundred seventy-seven thousand, five hundred seventy-eight".