264087 has 8 divisors (see below), whose sum is σ = 391280. Its totient is φ = 176040.

The previous prime is 264083. The next prime is 264091. The reversal of 264087 is 780462.

It is an interprime number because it is at equal distance from previous prime (264083) and next prime (264091).

It is not a de Polignac number, because 264087 - 2² = 264083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9781 = 264087 / (2 + 6 + 4 + 0 + 8 + 7).

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 0 + 4⁹ + 8³ + 7 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4864 + ... + 4917.

It is an arithmetic number, because the mean of its divisors is an integer number (48910).

2²⁶⁴⁰⁸⁷ is an apocalyptic number.

264087 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

264087 is a deficient number, since it is larger than the sum of its proper divisors (127193).

264087 is an equidigital number, since it uses as much as digits as its factorization.

264087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9790 (or 9784 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 264087 is about 513.8939579330. The cubic root of 264087 is about 64.1577326817.

The spelling of 264087 in words is "two hundred sixty-four thousand, eighty-seven".