85692049 has 3 divisors (see below), whose sum is σ = 85701307. Its totient is φ = 85682792.

The previous prime is 85692017. The next prime is 85692083. The reversal of 85692049 is 94029658.

The square root of 85692049 is 9257.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 5267025 + 80425024 = 2295^2 + 8968^2 .

It is not a de Polignac number, because 85692049 - 2⁵ = 85692017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85691996 and 85692014.

It is not an unprimeable number, because it can be changed into a prime (85692449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4629 + ... + 13885.

Almost surely, 2^85692049 is an apocalyptic number.

85692049 is the 9257-th square number.

85692049 is the 4629-th centered octagonal number.

It is an amenable number.

85692049 is a deficient number, since it is larger than the sum of its proper divisors (9258).

85692049 is an frugal number, since it uses more digits than its factorization.

85692049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18514 (or 9257 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The cubic root of 85692049 is about 440.8730067301.

The spelling of 85692049 in words is "eighty-five million, six hundred ninety-two thousand, forty-nine".