82426487 has 16 divisors (see below), whose sum is σ = 97759872. Its totient is φ = 68509920.

The previous prime is 82426483. The next prime is 82426511. The reversal of 82426487 is 78462428.

It is a cyclic number.

It is not a de Polignac number, because 82426487 - 2² = 82426483 is a prime.

It is a super-2 number, since 2×82426487² = 13588251518322338, 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 (82426483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12608 + ... + 17994.

It is an arithmetic number, because the mean of its divisors is an integer number (6109992).

Almost surely, 2^82426487 is an apocalyptic number.

82426487 is a deficient number, since it is larger than the sum of its proper divisors (15333385).

82426487 is a wasteful number, since it uses less digits than its factorization.

82426487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518.

The product of its digits is 172032, while the sum is 41.

The square root of 82426487 is about 9078.9034029447. The cubic root of 82426487 is about 435.2000436327.

The spelling of 82426487 in words is "eighty-two million, four hundred twenty-six thousand, four hundred eighty-seven".