87551742 has 8 divisors (see below), whose sum is σ = 175103496. Its totient is φ = 29183912.

The previous prime is 87551729. The next prime is 87551797. The reversal of 87551742 is 24715578.

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

87551742 is an admirable number.

It is a super-3 number, since 3×87551742³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87551742.

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, 7295973 + ... + 7295984.

It is an arithmetic number, because the mean of its divisors is an integer number (21887937).

Almost surely, 2^87551742 is an apocalyptic number.

87551742 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.

87551742 is a wasteful number, since it uses less digits than its factorization.

87551742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14591962.

The product of its digits is 78400, while the sum is 39.

The square root of 87551742 is about 9356.9087844223. The cubic root of 87551742 is about 444.0394920639.

The spelling of 87551742 in words is "eighty-seven million, five hundred fifty-one thousand, seven hundred forty-two".