7661055 has 16 divisors (see below), whose sum is σ = 12557664. Its totient is φ = 3985920.

The previous prime is 7661053. The next prime is 7661057. The reversal of 7661055 is 5501667.

It is an interprime number because it is at equal distance from previous prime (7661053) and next prime (7661057).

It is not a de Polignac number, because 7661055 - 2¹ = 7661053 is a prime.

7661055 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661053) 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, 5614 + ... + 6843.

It is an arithmetic number, because the mean of its divisors is an integer number (784854).

Almost surely, 2^7661055 is an apocalyptic number.

7661055 is a deficient number, since it is larger than the sum of its proper divisors (4896609).

7661055 is a wasteful number, since it uses less digits than its factorization.

7661055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12506.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 7661055 is about 2767.8610875548. The cubic root of 7661055 is about 197.1346018537.

The spelling of 7661055 in words is "seven million, six hundred sixty-one thousand, fifty-five".