79852869 has 24 divisors (see below), whose sum is σ = 119887872. Its totient is φ = 51161760.

The previous prime is 79852867. The next prime is 79852897. The reversal of 79852869 is 96825897.

It is a happy number.

It is not a de Polignac number, because 79852869 - 2¹ = 79852867 is a prime.

It is a super-2 number, since 2×79852869² = 12752961375062322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79852867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42892 + ... + 44714.

It is an arithmetic number, because the mean of its divisors is an integer number (4995328).

Almost surely, 2^79852869 is an apocalyptic number.

It is an amenable number.

79852869 is a deficient number, since it is larger than the sum of its proper divisors (40035003).

79852869 is a wasteful number, since it uses less digits than its factorization.

79852869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017 (or 2014 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 79852869 is about 8936.0432519097. The cubic root of 79852869 is about 430.6226224606.

The spelling of 79852869 in words is "seventy-nine million, eight hundred fifty-two thousand, eight hundred sixty-nine".