87766722 has 24 divisors (see below), whose sum is σ = 190545264. Its totient is φ = 29196504.

The previous prime is 87766711. The next prime is 87766747. The reversal of 87766722 is 22766778.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4753 + ... + 14075.

It is an arithmetic number, because the mean of its divisors is an integer number (7939386).

Almost surely, 2^87766722 is an apocalyptic number.

87766722 is an abundant number, since it is smaller than the sum of its proper divisors (102778542).

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

87766722 is a wasteful number, since it uses less digits than its factorization.

87766722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9854 (or 9851 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 87766722 is about 9368.3895094088. The cubic root of 87766722 is about 444.4026357385.

It can be divided in two parts, 87766 and 722, that added together give a palindrome (88488).

The spelling of 87766722 in words is "eighty-seven million, seven hundred sixty-six thousand, seven hundred twenty-two".