87488490 has 16 divisors (see below), whose sum is σ = 209972448. Its totient is φ = 23330256.

The previous prime is 87488449. The next prime is 87488491. The reversal of 87488490 is 9488478.

It is not an unprimeable number, because it can be changed into a prime (87488491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1458112 + ... + 1458171.

It is an arithmetic number, because the mean of its divisors is an integer number (13123278).

Almost surely, 2^87488490 is an apocalyptic number.

87488490 is an abundant number, since it is smaller than the sum of its proper divisors (122483958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87488490 is a wasteful number, since it uses less digits than its factorization.

87488490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916293.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 87488490 is about 9353.5282113222. The cubic root of 87488490 is about 443.9325337795.

It can be divided in two parts, 87488 and 490, that added together give a palindrome (87978).

The spelling of 87488490 in words is "eighty-seven million, four hundred eighty-eight thousand, four hundred ninety".