87646340 has 48 divisors (see below), whose sum is σ = 191443392. Its totient is φ = 33676416.

The previous prime is 87646337. The next prime is 87646369. The reversal of 87646340 is 4364678.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 87646294 and 87646303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60707 + ... + 62133.

It is an arithmetic number, because the mean of its divisors is an integer number (3988404).

Almost surely, 2^87646340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87646340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95721696).

87646340 is an abundant number, since it is smaller than the sum of its proper divisors (103797052).

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

87646340 is a wasteful number, since it uses less digits than its factorization.

87646340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 87646340 is about 9361.9624011208. The cubic root of 87646340 is about 444.1993599217.

The spelling of 87646340 in words is "eighty-seven million, six hundred forty-six thousand, three hundred forty".