87960722 has 4 divisors (see below), whose sum is σ = 131941086. Its totient is φ = 43980360.

The previous prime is 87960721. The next prime is 87960727. The reversal of 87960722 is 22706978.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 74114881 + 13845841 = 8609^2 + 3721^2 .

It is a super-2 number, since 2×87960722² = 15474177229522568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87960722.

It is not an unprimeable number, because it can be changed into a prime (87960721) 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 as a sum of consecutive naturals, namely, 21990179 + ... + 21990182.

Almost surely, 2^87960722 is an apocalyptic number.

87960722 is a deficient number, since it is larger than the sum of its proper divisors (43980364).

87960722 is a wasteful number, since it uses less digits than its factorization.

87960722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43980363.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 87960722 is about 9378.7377615541. The cubic root of 87960722 is about 444.7298313792.

The spelling of 87960722 in words is "eighty-seven million, nine hundred sixty thousand, seven hundred twenty-two".