87084403 has 4 divisors (see below), whose sum is σ = 99525040. Its totient is φ = 74643768.

The previous prime is 87084397. The next prime is 87084407. The reversal of 87084403 is 30448078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30448078 = 2 ⋅15224039.

It is a cyclic number.

It is not a de Polignac number, because 87084403 - 2¹³ = 87076211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87084407) 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, 6220308 + ... + 6220321.

It is an arithmetic number, because the mean of its divisors is an integer number (24881260).

Almost surely, 2^87084403 is an apocalyptic number.

87084403 is a deficient number, since it is larger than the sum of its proper divisors (12440637).

87084403 is a wasteful number, since it uses less digits than its factorization.

87084403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12440636.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 87084403 is about 9331.9024319803. The cubic root of 87084403 is about 443.2480084660.

The spelling of 87084403 in words is "eighty-seven million, eighty-four thousand, four hundred three".