87388898 has 4 divisors (see below), whose sum is σ = 131083350. Its totient is φ = 43694448.

The previous prime is 87388877. The next prime is 87388909. The reversal of 87388898 is 89888378.

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

It can be written as a sum of positive squares in only one way, i.e., 55995289 + 31393609 = 7483^2 + 5603^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21847223 + ... + 21847226.

Almost surely, 2^87388898 is an apocalyptic number.

87388898 is a deficient number, since it is larger than the sum of its proper divisors (43694452).

87388898 is a wasteful number, since it uses less digits than its factorization.

87388898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43694451.

The product of its digits is 6193152, while the sum is 59.

The square root of 87388898 is about 9348.2029289056. The cubic root of 87388898 is about 443.7640205052.

The spelling of 87388898 in words is "eighty-seven million, three hundred eighty-eight thousand, eight hundred ninety-eight".