87232403 has 4 divisors (see below), whose sum is σ = 87322128. Its totient is φ = 87142680.

The previous prime is 87232361. The next prime is 87232417. The reversal of 87232403 is 30423278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30423278 = 2 ⋅15211639.

It is a cyclic number.

It is not a de Polignac number, because 87232403 - 2⁶ = 87232339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87232433) 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, 43388 + ... + 45353.

It is an arithmetic number, because the mean of its divisors is an integer number (21830532).

Almost surely, 2^87232403 is an apocalyptic number.

87232403 is a deficient number, since it is larger than the sum of its proper divisors (89725).

87232403 is an equidigital number, since it uses as much as digits as its factorization.

87232403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89724.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 87232403 is about 9339.8288528217. The cubic root of 87232403 is about 443.4989664456.

The spelling of 87232403 in words is "eighty-seven million, two hundred thirty-two thousand, four hundred three".