88661766 has 16 divisors (see below), whose sum is σ = 187754544. Its totient is φ = 27815424.

The previous prime is 88661761. The next prime is 88661777. The reversal of 88661766 is 66716688.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88661761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434515 + ... + 434718.

It is an arithmetic number, because the mean of its divisors is an integer number (11734659).

Almost surely, 2^88661766 is an apocalyptic number.

88661766 is an abundant number, since it is smaller than the sum of its proper divisors (99092778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88661766 is a wasteful number, since it uses less digits than its factorization.

88661766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869255.

The product of its digits is 580608, while the sum is 48.

The square root of 88661766 is about 9416.0377017087. The cubic root of 88661766 is about 445.9082003211.

The spelling of 88661766 in words is "eighty-eight million, six hundred sixty-one thousand, seven hundred sixty-six".