85047967 has 4 divisors (see below), whose sum is σ = 85127296. Its totient is φ = 84968640.

The previous prime is 85047961. The next prime is 85047983. The reversal of 85047967 is 76974058.

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 85047967 - 2⁷ = 85047839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85047961) 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, 38034 + ... + 40207.

It is an arithmetic number, because the mean of its divisors is an integer number (21281824).

Almost surely, 2^85047967 is an apocalyptic number.

85047967 is a deficient number, since it is larger than the sum of its proper divisors (79329).

85047967 is a wasteful number, since it uses less digits than its factorization.

85047967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79328.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 85047967 is about 9222.1454662134. The cubic root of 85047967 is about 439.7656586155.

It can be divided in two parts, 8504 and 7967, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 85047967 in words is "eighty-five million, forty-seven thousand, nine hundred sixty-seven".