87523622 has 4 divisors (see below), whose sum is σ = 131285436. Its totient is φ = 43761810.

The previous prime is 87523613. The next prime is 87523627. The reversal of 87523622 is 22632578.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22632578 = 2 ⋅11316289.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87523627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21880904 + ... + 21880907.

It is an arithmetic number, because the mean of its divisors is an integer number (32821359).

Almost surely, 2^87523622 is an apocalyptic number.

87523622 is a deficient number, since it is larger than the sum of its proper divisors (43761814).

87523622 is a wasteful number, since it uses less digits than its factorization.

87523622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43761813.

The product of its digits is 40320, while the sum is 35.

The square root of 87523622 is about 9355.4060307397. The cubic root of 87523622 is about 443.9919478831.

The spelling of 87523622 in words is "eighty-seven million, five hundred twenty-three thousand, six hundred twenty-two".