85463779 has 4 divisors (see below), whose sum is σ = 85605184. Its totient is φ = 85322376.

The previous prime is 85463773. The next prime is 85463797. The reversal of 85463779 is 97736458.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85463779 - 2²³ = 77075171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85463773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69792 + ... + 71005.

It is an arithmetic number, because the mean of its divisors is an integer number (21401296).

Almost surely, 2^85463779 is an apocalyptic number.

85463779 is a deficient number, since it is larger than the sum of its proper divisors (141405).

85463779 is a wasteful number, since it uses less digits than its factorization.

85463779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141404.

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

The square root of 85463779 is about 9244.6621896097. The cubic root of 85463779 is about 440.4811867336.

The spelling of 85463779 in words is "eighty-five million, four hundred sixty-three thousand, seven hundred seventy-nine".