87701722 has 4 divisors (see below), whose sum is σ = 131552586. Its totient is φ = 43850860.

The previous prime is 87701717. The next prime is 87701723. The reversal of 87701722 is 22710778.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22710778 = 2 ⋅11355389.

It can be written as a sum of positive squares in only one way, i.e., 79227801 + 8473921 = 8901^2 + 2911^2 .

It is not an unprimeable number, because it can be changed into a prime (87701723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21925429 + ... + 21925432.

Almost surely, 2^87701722 is an apocalyptic number.

87701722 is a deficient number, since it is larger than the sum of its proper divisors (43850864).

87701722 is a wasteful number, since it uses less digits than its factorization.

87701722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43850863.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 87701722 is about 9364.9197540609. The cubic root of 87701722 is about 444.2929005046.

The spelling of 87701722 in words is "eighty-seven million, seven hundred one thousand, seven hundred twenty-two".