87542851 has 16 divisors (see below), whose sum is σ = 101478240. Its totient is φ = 74753280.

The previous prime is 87542849. The next prime is 87542879. The reversal of 87542851 is 15824578.

It is a cyclic number.

It is not a de Polignac number, because 87542851 - 2¹ = 87542849 is a prime.

It is a super-2 number, since 2×87542851² = 15327501522416402, which contains 22 as substring.

It is a Duffinian number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8095 + ... + 15511.

It is an arithmetic number, because the mean of its divisors is an integer number (6342390).

Almost surely, 2^87542851 is an apocalyptic number.

87542851 is a deficient number, since it is larger than the sum of its proper divisors (13935389).

87542851 is a wasteful number, since it uses less digits than its factorization.

87542851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7494.

The product of its digits is 89600, while the sum is 40.

The square root of 87542851 is about 9356.4336688719. The cubic root of 87542851 is about 444.0244606144.

The spelling of 87542851 in words is "eighty-seven million, five hundred forty-two thousand, eight hundred fifty-one".