87403243 has 8 divisors (see below), whose sum is σ = 91447200. Its totient is φ = 83379648.

The previous prime is 87403241. The next prime is 87403247. The reversal of 87403243 is 34230478.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87403243 - 2¹ = 87403241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87403241) 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, 4063 + ... + 13831.

It is an arithmetic number, because the mean of its divisors is an integer number (11430900).

Almost surely, 2^87403243 is an apocalyptic number.

87403243 is a deficient number, since it is larger than the sum of its proper divisors (4043957).

87403243 is a wasteful number, since it uses less digits than its factorization.

87403243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 87403243 is about 9348.9701571884. The cubic root of 87403243 is about 443.7883006550.

The spelling of 87403243 in words is "eighty-seven million, four hundred three thousand, two hundred forty-three".