87520626 has 48 divisors (see below), whose sum is σ = 198751488. Its totient is φ = 27799200.

The previous prime is 87520621. The next prime is 87520633. The reversal of 87520626 is 62602578.

87520626 is a `hidden beast` number, since 8 + 7 + 5 + 20 + 626 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87520621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36216 + ... + 38556.

It is an arithmetic number, because the mean of its divisors is an integer number (4140656).

Almost surely, 2^87520626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87520626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99375744).

87520626 is an abundant number, since it is smaller than the sum of its proper divisors (111230862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87520626 is a wasteful number, since it uses less digits than its factorization.

87520626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 87520626 is about 9355.2459080454. The cubic root of 87520626 is about 443.9868817648.

The spelling of 87520626 in words is "eighty-seven million, five hundred twenty thousand, six hundred twenty-six".