87481263 has 16 divisors (see below), whose sum is σ = 123016320. Its totient is φ = 55145376.

The previous prime is 87481231. The next prime is 87481267. The reversal of 87481263 is 36218478.

It is not a de Polignac number, because 87481263 - 2⁵ = 87481231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87481267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37456 + ... + 39722.

It is an arithmetic number, because the mean of its divisors is an integer number (7688520).

Almost surely, 2^87481263 is an apocalyptic number.

87481263 is a deficient number, since it is larger than the sum of its proper divisors (35535057).

87481263 is a wasteful number, since it uses less digits than its factorization.

87481263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966.

The product of its digits is 64512, while the sum is 39.

The square root of 87481263 is about 9353.1418785347. The cubic root of 87481263 is about 443.9203097381.

It can be divided in two parts, 8748 and 1263, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 87481263 in words is "eighty-seven million, four hundred eighty-one thousand, two hundred sixty-three".