87041243 has 4 divisors (see below), whose sum is σ = 88267248. Its totient is φ = 85815240.

The previous prime is 87041233. The next prime is 87041249. The reversal of 87041243 is 34214078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87041243 - 2²⁶ = 19932379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87041249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612896 + ... + 613037.

It is an arithmetic number, because the mean of its divisors is an integer number (22066812).

Almost surely, 2^87041243 is an apocalyptic number.

87041243 is a deficient number, since it is larger than the sum of its proper divisors (1226005).

87041243 is a wasteful number, since it uses less digits than its factorization.

87041243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226004.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 87041243 is about 9329.5896479963. The cubic root of 87041243 is about 443.1747701489.

The spelling of 87041243 in words is "eighty-seven million, forty-one thousand, two hundred forty-three".