87453403 has 4 divisors (see below), whose sum is σ = 87959088. Its totient is φ = 86947720.

The previous prime is 87453367. The next prime is 87453407. The reversal of 87453403 is 30435478.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87453403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87453407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252583 + ... + 252928.

It is an arithmetic number, because the mean of its divisors is an integer number (21989772).

Almost surely, 2^87453403 is an apocalyptic number.

87453403 is a deficient number, since it is larger than the sum of its proper divisors (505685).

87453403 is a wasteful number, since it uses less digits than its factorization.

87453403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505684.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 87453403 is about 9351.6524208292. The cubic root of 87453403 is about 443.8731799012.

The spelling of 87453403 in words is "eighty-seven million, four hundred fifty-three thousand, four hundred three".