83779469 has 8 divisors (see below), whose sum is σ = 85428000. Its totient is φ = 82138672.

The previous prime is 83779457. The next prime is 83779477. The reversal of 83779469 is 96497738.

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-83779469 is a prime.

It is a super-2 number, since 2×83779469² = 14037998851843922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83779469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83779489) 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, 23027 + ... + 26415.

It is an arithmetic number, because the mean of its divisors is an integer number (10678500).

Almost surely, 2^83779469 is an apocalyptic number.

It is an amenable number.

83779469 is a deficient number, since it is larger than the sum of its proper divisors (1648531).

83779469 is a wasteful number, since it uses less digits than its factorization.

83779469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867.

The product of its digits is 2286144, while the sum is 53.

The square root of 83779469 is about 9153.1125307187. The cubic root of 83779469 is about 437.5683162977.

It can be divided in two parts, 83779 and 469, that added together give a palindrome (84248).

The spelling of 83779469 in words is "eighty-three million, seven hundred seventy-nine thousand, four hundred sixty-nine".