611087 has 6 divisors (see below), whose sum is σ = 641592. Its totient is φ = 580932.

The previous prime is 611081. The next prime is 611101. The reversal of 611087 is 780116.

611087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 611087 - 2⁴ = 611071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611081) 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, 3668 + ... + 3830.

It is an arithmetic number, because the mean of its divisors is an integer number (106932).

2⁶¹¹⁰⁸⁷ is an apocalyptic number.

611087 is a deficient number, since it is larger than the sum of its proper divisors (30505).

611087 is an equidigital number, since it uses as much as digits as its factorization.

611087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 611087 is about 781.7205383000. The cubic root of 611087 is about 84.8596067659.

Multiplying 611087 by its sum of digits (23), we get a square (14055001 = 3749²).

611087 divided by its sum of digits (23) gives a square (26569 = 163²).

The spelling of 611087 in words is "six hundred eleven thousand, eighty-seven".