611000087 has 2 divisors, whose sum is σ = 611000088. Its totient is φ = 611000086.

The previous prime is 611000053. The next prime is 611000099. The reversal of 611000087 is 780000116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611000087 - 2¹⁸ = 610737943 is a prime.

It is a super-2 number, since 2×611000087² = 746642212628015138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611000387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305500043 + 305500044.

It is an arithmetic number, because the mean of its divisors is an integer number (305500044).

Almost surely, 2^611000087 is an apocalyptic number.

611000087 is a deficient number, since it is larger than the sum of its proper divisors (1).

611000087 is an equidigital number, since it uses as much as digits as its factorization.

611000087 is an evil number, because the sum of its binary digits is even.

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

The square root of 611000087 is about 24718.4159484381. The cubic root of 611000087 is about 848.5558346933. Note that the first 3 decimals are identical.

The spelling of 611000087 in words is "six hundred eleven million, eighty-seven", and thus it is an aban number.