82287077 has 4 divisors (see below), whose sum is σ = 85864800. Its totient is φ = 78709356.

The previous prime is 82287071. The next prime is 82287091. The reversal of 82287077 is 77078228.

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 82287077 - 2⁶ = 82287013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82287071) 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, 1788827 + ... + 1788872.

It is an arithmetic number, because the mean of its divisors is an integer number (21466200).

Almost surely, 2^82287077 is an apocalyptic number.

It is an amenable number.

82287077 is a deficient number, since it is larger than the sum of its proper divisors (3577723).

82287077 is a wasteful number, since it uses less digits than its factorization.

82287077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577722.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 82287077 is about 9071.2224644752. Note that the first 3 decimals coincide. The cubic root of 82287077 is about 434.9545502345.

The spelling of 82287077 in words is "eighty-two million, two hundred eighty-seven thousand, seventy-seven".