87542802 has 16 divisors (see below), whose sum is σ = 194539680. Its totient is φ = 29180916.

The previous prime is 87542801. The next prime is 87542813. The reversal of 87542802 is 20824578.

It is a happy number.

It is a super-2 number, since 2×87542802² = 15327484364022408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87542801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810528 + ... + 810635.

It is an arithmetic number, because the mean of its divisors is an integer number (12158730).

Almost surely, 2^87542802 is an apocalyptic number.

87542802 is an abundant number, since it is smaller than the sum of its proper divisors (106996878).

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

87542802 is a wasteful number, since it uses less digits than its factorization.

87542802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621174 (or 1621168 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 87542802 is about 9356.4310503525. The cubic root of 87542802 is about 444.0243777704.

The spelling of 87542802 in words is "eighty-seven million, five hundred forty-two thousand, eight hundred two".