87554442 has 8 divisors (see below), whose sum is σ = 175108896. Its totient is φ = 29184812.

The previous prime is 87554419. The next prime is 87554443. The reversal of 87554442 is 24445578.

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

87554442 is an admirable number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87554442.

It is not an unprimeable number, because it can be changed into a prime (87554443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7296198 + ... + 7296209.

It is an arithmetic number, because the mean of its divisors is an integer number (21888612).

Almost surely, 2^87554442 is an apocalyptic number.

87554442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87554442 is a wasteful number, since it uses less digits than its factorization.

87554442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14592412.

The product of its digits is 179200, while the sum is 39.

The square root of 87554442 is about 9357.0530617284. The cubic root of 87554442 is about 444.0440565811.

The spelling of 87554442 in words is "eighty-seven million, five hundred fifty-four thousand, four hundred forty-two".