82754257 has 4 divisors (see below), whose sum is σ = 83076516. Its totient is φ = 82432000.

The previous prime is 82754239. The next prime is 82754279. The reversal of 82754257 is 75245728.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41267776 + 41486481 = 6424^2 + 6441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82754257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82754227) 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, 160744 + ... + 161257.

It is an arithmetic number, because the mean of its divisors is an integer number (20769129).

Almost surely, 2^82754257 is an apocalyptic number.

It is an amenable number.

82754257 is a deficient number, since it is larger than the sum of its proper divisors (322259).

82754257 is a wasteful number, since it uses less digits than its factorization.

82754257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322258.

The product of its digits is 156800, while the sum is 40.

The square root of 82754257 is about 9096.9366822024. The cubic root of 82754257 is about 435.7761402364.

The spelling of 82754257 in words is "eighty-two million, seven hundred fifty-four thousand, two hundred fifty-seven".