7661061 has 32 divisors (see below), whose sum is σ = 11965440. Its totient is φ = 4898880.

The previous prime is 7661057. The next prime is 7661077. The reversal of 7661061 is 1601667.

It is not a de Polignac number, because 7661061 - 2² = 7661057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67741 + ... + 67853.

It is an arithmetic number, because the mean of its divisors is an integer number (373920).

Almost surely, 2^7661061 is an apocalyptic number.

It is an amenable number.

7661061 is a deficient number, since it is larger than the sum of its proper divisors (4304379).

7661061 is an equidigital number, since it uses as much as digits as its factorization.

7661061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 7661061 is about 2767.8621714240. The cubic root of 7661061 is about 197.1346533178.

The spelling of 7661061 in words is "seven million, six hundred sixty-one thousand, sixty-one".