87951543 has 8 divisors (see below), whose sum is σ = 117355248. Its totient is φ = 58591104.

The previous prime is 87951529. The next prime is 87951547. The reversal of 87951543 is 34515978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87951543 - 2⁴ = 87951527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87951495 and 87951504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87951547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5730 + ... + 14447.

It is an arithmetic number, because the mean of its divisors is an integer number (14669406).

Almost surely, 2^87951543 is an apocalyptic number.

87951543 is a deficient number, since it is larger than the sum of its proper divisors (29403705).

87951543 is a wasteful number, since it uses less digits than its factorization.

87951543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21633.

The product of its digits is 151200, while the sum is 42.

The square root of 87951543 is about 9378.2483972222. The cubic root of 87951543 is about 444.7143611518.

The spelling of 87951543 in words is "eighty-seven million, nine hundred fifty-one thousand, five hundred forty-three".