82426887 has 6 divisors (see below), whose sum is σ = 119061072. Its totient is φ = 54951252.

The previous prime is 82426867. The next prime is 82426907. The reversal of 82426887 is 78862428.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82426867) and next prime (82426907).

It is not a de Polignac number, because 82426887 - 2¹⁶ = 82361351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82426837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4579263 + ... + 4579280.

It is an arithmetic number, because the mean of its divisors is an integer number (19843512).

Almost surely, 2^82426887 is an apocalyptic number.

82426887 is a deficient number, since it is larger than the sum of its proper divisors (36634185).

82426887 is a wasteful number, since it uses less digits than its factorization.

82426887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158549 (or 9158546 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 82426887 is about 9078.9254320101. The cubic root of 82426887 is about 435.2007476125.

It can be divided in two parts, 8242 and 6887, that added together give a square (15129 = 123²).

The spelling of 82426887 in words is "eighty-two million, four hundred twenty-six thousand, eight hundred eighty-seven".