87444998 has 4 divisors (see below), whose sum is σ = 131167500. Its totient is φ = 43722498.

The previous prime is 87444979. The next prime is 87445003. The reversal of 87444998 is 89944478.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21861248 + ... + 21861251.

It is an arithmetic number, because the mean of its divisors is an integer number (32791875).

Almost surely, 2^87444998 is an apocalyptic number.

87444998 is a deficient number, since it is larger than the sum of its proper divisors (43722502).

87444998 is a wasteful number, since it uses less digits than its factorization.

87444998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43722501.

The product of its digits is 2322432, while the sum is 53.

The square root of 87444998 is about 9351.2030242103. The cubic root of 87444998 is about 443.8589594765.

The spelling of 87444998 in words is "eighty-seven million, four hundred forty-four thousand, nine hundred ninety-eight".