82277833 has 4 divisors (see below), whose sum is σ = 89757648. Its totient is φ = 74798020.

The previous prime is 82277827. The next prime is 82277851. The reversal of 82277833 is 33877228.

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 de Polignac number, because none of the positive numbers 2^k-82277833 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82277803) 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, 3739891 + ... + 3739912.

It is an arithmetic number, because the mean of its divisors is an integer number (22439412).

Almost surely, 2^82277833 is an apocalyptic number.

82277833 is the 4849-th centered heptagonal number.

It is an amenable number.

82277833 is a deficient number, since it is larger than the sum of its proper divisors (7479815).

82277833 is a wasteful number, since it uses less digits than its factorization.

82277833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479814.

The product of its digits is 112896, while the sum is 40.

The square root of 82277833 is about 9070.7129267770. The cubic root of 82277833 is about 434.9382622560.

The spelling of 82277833 in words is "eighty-two million, two hundred seventy-seven thousand, eight hundred thirty-three".