87008742 has 20 divisors (see below), whose sum is σ = 194964396. Its totient is φ = 29002860.

The previous prime is 87008741. The next prime is 87008749. The reversal of 87008742 is 24780078.

It is a junction number, because it is equal to n+sod(n) for n = 87008697 and 87008706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87008741) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 268384 + ... + 268707.

Almost surely, 2^87008742 is an apocalyptic number.

87008742 is an abundant number, since it is smaller than the sum of its proper divisors (107955654).

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

87008742 is a wasteful number, since it uses less digits than its factorization.

87008742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537105 (or 537096 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 87008742 is about 9327.8476617063. The cubic root of 87008742 is about 443.1196031352.

The spelling of 87008742 in words is "eighty-seven million, eight thousand, seven hundred forty-two".