87654798 has 80 divisors (see below), whose sum is σ = 244911744. Its totient is φ = 22764240.

The previous prime is 87654779. The next prime is 87654803. The reversal of 87654798 is 89745678.

87654798 is a `hidden beast` number, since 8 + 7 + 6 + 547 + 98 = 666.

It is a super-2 number, since 2×87654798² = 15366727224841608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8961 + ... + 15987.

Almost surely, 2^87654798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87654798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122455872).

87654798 is an abundant number, since it is smaller than the sum of its proper divisors (157256946).

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

87654798 is a wasteful number, since it uses less digits than its factorization.

87654798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059 (or 7050 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 87654798 is about 9362.4141117556. The cubic root of 87654798 is about 444.2136480914.

The spelling of 87654798 in words is "eighty-seven million, six hundred fifty-four thousand, seven hundred ninety-eight".