87803471 has 4 divisors (see below), whose sum is σ = 100346832. Its totient is φ = 75260112.

The previous prime is 87803467. The next prime is 87803477. The reversal of 87803471 is 17430878.

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 87803471 - 2² = 87803467 is a prime.

It is a super-3 number, since 3×87803471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87803477) 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, 6271670 + ... + 6271683.

It is an arithmetic number, because the mean of its divisors is an integer number (25086708).

Almost surely, 2^87803471 is an apocalyptic number.

87803471 is a deficient number, since it is larger than the sum of its proper divisors (12543361).

87803471 is a wasteful number, since it uses less digits than its factorization.

87803471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12543360.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 87803471 is about 9370.3506337810. The cubic root of 87803471 is about 444.4646526899.

The spelling of 87803471 in words is "eighty-seven million, eight hundred three thousand, four hundred seventy-one".