83469985 has 8 divisors (see below), whose sum is σ = 101289960. Its totient is φ = 66025344.

The previous prime is 83469977. The next prime is 83469989. The reversal of 83469985 is 58996438.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1096209 + 82373776 = 1047^2 + 9076^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 83469985 - 2³ = 83469977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83469989) 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, 93342 + ... + 94231.

It is an arithmetic number, because the mean of its divisors is an integer number (12661245).

Almost surely, 2^83469985 is an apocalyptic number.

It is an amenable number.

83469985 is a deficient number, since it is larger than the sum of its proper divisors (17819975).

83469985 is a wasteful number, since it uses less digits than its factorization.

83469985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187667.

The product of its digits is 1866240, while the sum is 52.

The square root of 83469985 is about 9136.1909459030. The cubic root of 83469985 is about 437.0288544362.

The spelling of 83469985 in words is "eighty-three million, four hundred sixty-nine thousand, nine hundred eighty-five".