85432665 has 16 divisors (see below), whose sum is σ = 136833408. Its totient is φ = 45517056.

The previous prime is 85432663. The next prime is 85432673. The reversal of 85432665 is 56623458.

It is not a de Polignac number, because 85432665 - 2¹ = 85432663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85432663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16017 + ... + 20673.

It is an arithmetic number, because the mean of its divisors is an integer number (8552088).

Almost surely, 2^85432665 is an apocalyptic number.

It is an amenable number.

85432665 is a deficient number, since it is larger than the sum of its proper divisors (51400743).

85432665 is a wasteful number, since it uses less digits than its factorization.

85432665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888.

The product of its digits is 172800, while the sum is 39.

The square root of 85432665 is about 9242.9792275002. The cubic root of 85432665 is about 440.4277262880.

The spelling of 85432665 in words is "eighty-five million, four hundred thirty-two thousand, six hundred sixty-five".