87722552 has 16 divisors (see below), whose sum is σ = 171631440. Its totient is φ = 41954176.

The previous prime is 87722549. The next prime is 87722573. The reversal of 87722552 is 25522778.

It is a super-2 number, since 2×87722552² = 15390492258785408, which contains 22 as substring.

It is a congruent number.

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, 238193 + ... + 238560.

It is an arithmetic number, because the mean of its divisors is an integer number (10726965).

Almost surely, 2^87722552 is an apocalyptic number.

It is an amenable number.

87722552 is a deficient number, since it is larger than the sum of its proper divisors (83908888).

87722552 is a wasteful number, since it uses less digits than its factorization.

87722552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476782 (or 476778 counting only the distinct ones).

The product of its digits is 78400, while the sum is 38.

The square root of 87722552 is about 9366.0318171571. The cubic root of 87722552 is about 444.3280723284.

The spelling of 87722552 in words is "eighty-seven million, seven hundred twenty-two thousand, five hundred fifty-two".