82741279 has 4 divisors (see below), whose sum is σ = 83336680. Its totient is φ = 82145880.

The previous prime is 82741277. The next prime is 82741283. The reversal of 82741279 is 97214728.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82741279 - 2¹ = 82741277 is a prime.

It is a super-2 number, since 2×82741279² = 13692238501111682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82741277) 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, 297492 + ... + 297769.

It is an arithmetic number, because the mean of its divisors is an integer number (20834170).

Almost surely, 2^82741279 is an apocalyptic number.

82741279 is a deficient number, since it is larger than the sum of its proper divisors (595401).

82741279 is a wasteful number, since it uses less digits than its factorization.

82741279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595400.

The product of its digits is 56448, while the sum is 40.

The square root of 82741279 is about 9096.2233371878. The cubic root of 82741279 is about 435.7533587360.

The spelling of 82741279 in words is "eighty-two million, seven hundred forty-one thousand, two hundred seventy-nine".