87516722 has 8 divisors (see below), whose sum is σ = 135801900. Its totient is φ = 42249424.

The previous prime is 87516713. The next prime is 87516743. The reversal of 87516722 is 22761578.

It can be written as a sum of positive squares in 2 ways, for example, as 79727041 + 7789681 = 8929^2 + 2791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754397 + ... + 754512.

Almost surely, 2^87516722 is an apocalyptic number.

87516722 is a deficient number, since it is larger than the sum of its proper divisors (48285178).

87516722 is a wasteful number, since it uses less digits than its factorization.

87516722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508940.

The product of its digits is 47040, while the sum is 38.

The square root of 87516722 is about 9355.0372527318. The cubic root of 87516722 is about 443.9802800808.

The spelling of 87516722 in words is "eighty-seven million, five hundred sixteen thousand, seven hundred twenty-two".