87445898 has 4 divisors (see below), whose sum is σ = 131168850. Its totient is φ = 43722948.

The previous prime is 87445877. The next prime is 87445903. The reversal of 87445898 is 89854478.

It is a happy number.

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., 50879689 + 36566209 = 7133^2 + 6047^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21861473 + ... + 21861476.

Almost surely, 2^87445898 is an apocalyptic number.

87445898 is a deficient number, since it is larger than the sum of its proper divisors (43722952).

87445898 is a wasteful number, since it uses less digits than its factorization.

87445898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43722951.

The product of its digits is 2580480, while the sum is 53.

The square root of 87445898 is about 9351.2511462371. The cubic root of 87445898 is about 443.8604822306.

The spelling of 87445898 in words is "eighty-seven million, four hundred forty-five thousand, eight hundred ninety-eight".