85463215 has 4 divisors (see below), whose sum is σ = 102555864. Its totient is φ = 68370568.

The previous prime is 85463173. The next prime is 85463219. The reversal of 85463215 is 51236458.

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 85463215 - 2¹³ = 85455023 is a prime.

It is a super-2 number, since 2×85463215² = 14607922236272450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85463219) 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, 8546317 + ... + 8546326.

It is an arithmetic number, because the mean of its divisors is an integer number (25638966).

Almost surely, 2^85463215 is an apocalyptic number.

85463215 is a deficient number, since it is larger than the sum of its proper divisors (17092649).

85463215 is a wasteful number, since it uses less digits than its factorization.

85463215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17092648.

The product of its digits is 28800, while the sum is 34.

The square root of 85463215 is about 9244.6316854702. The cubic root of 85463215 is about 440.4802177776.

The spelling of 85463215 in words is "eighty-five million, four hundred sixty-three thousand, two hundred fifteen".