82478834 has 4 divisors (see below), whose sum is σ = 123718254. Its totient is φ = 41239416.

The previous prime is 82478833. The next prime is 82478857. The reversal of 82478834 is 43887428.

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

It can be written as a sum of positive squares in only one way, i.e., 81993025 + 485809 = 9055^2 + 697^2 .

It is not an unprimeable number, because it can be changed into a prime (82478833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20619707 + ... + 20619710.

Almost surely, 2^82478834 is an apocalyptic number.

82478834 is a deficient number, since it is larger than the sum of its proper divisors (41239420).

82478834 is a wasteful number, since it uses less digits than its factorization.

82478834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41239419.

The product of its digits is 344064, while the sum is 44.

The square root of 82478834 is about 9081.7858375982. The cubic root of 82478834 is about 435.2921523572.

The spelling of 82478834 in words is "eighty-two million, four hundred seventy-eight thousand, eight hundred thirty-four".