82511434 has 8 divisors (see below), whose sum is σ = 126785988. Its totient is φ = 40249440.

The previous prime is 82511431. The next prime is 82511447. The reversal of 82511434 is 43411528.

It can be written as a sum of positive squares in 2 ways, for example, as 66471409 + 16040025 = 8153^2 + 4005^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (82511431) 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, 503037 + ... + 503200.

Almost surely, 2^82511434 is an apocalyptic number.

82511434 is a deficient number, since it is larger than the sum of its proper divisors (44274554).

82511434 is a wasteful number, since it uses less digits than its factorization.

82511434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006280.

The product of its digits is 3840, while the sum is 28.

The square root of 82511434 is about 9083.5804614700. The cubic root of 82511434 is about 435.3494949678.

The spelling of 82511434 in words is "eighty-two million, five hundred eleven thousand, four hundred thirty-four".