82377769 has 4 divisors (see below), whose sum is σ = 82838160. Its totient is φ = 81917380.

The previous prime is 82377751. The next prime is 82377797. The reversal of 82377769 is 96777328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82377769 - 2¹¹ = 82375721 is a prime.

It is a super-2 number, since 2×82377769² = 13572193650834722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82377739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229927 + ... + 230284.

It is an arithmetic number, because the mean of its divisors is an integer number (20709540).

Almost surely, 2^82377769 is an apocalyptic number.

It is an amenable number.

82377769 is a deficient number, since it is larger than the sum of its proper divisors (460391).

82377769 is a wasteful number, since it uses less digits than its factorization.

82377769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460390.

The product of its digits is 889056, while the sum is 49.

The square root of 82377769 is about 9076.2199730945. The cubic root of 82377769 is about 435.1142853811.

The spelling of 82377769 in words is "eighty-two million, three hundred seventy-seven thousand, seven hundred sixty-nine".