85672147 has 8 divisors (see below), whose sum is σ = 94319280. Its totient is φ = 77168160.

The previous prime is 85672141. The next prime is 85672157. The reversal of 85672147 is 74127658.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85672147 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (85672141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34528 + ... + 36925.

It is an arithmetic number, because the mean of its divisors is an integer number (11789910).

Almost surely, 2^85672147 is an apocalyptic number.

85672147 is the 4948-th centered heptagonal number.

85672147 is a deficient number, since it is larger than the sum of its proper divisors (8647133).

85672147 is a wasteful number, since it uses less digits than its factorization.

85672147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71573.

The product of its digits is 94080, while the sum is 40.

The square root of 85672147 is about 9255.9249672845. The cubic root of 85672147 is about 440.8388731318.

The spelling of 85672147 in words is "eighty-five million, six hundred seventy-two thousand, one hundred forty-seven".