89821748 has 6 divisors (see below), whose sum is σ = 157188066. Its totient is φ = 44910872.

The previous prime is 89821691. The next prime is 89821763. The reversal of 89821748 is 84712898.

It can be written as a sum of positive squares in only one way, i.e., 70090384 + 19731364 = 8372^2 + 4442^2 .

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, 11227715 + ... + 11227722.

It is an arithmetic number, because the mean of its divisors is an integer number (26198011).

Almost surely, 2^89821748 is an apocalyptic number.

It is an amenable number.

89821748 is a deficient number, since it is larger than the sum of its proper divisors (67366318).

89821748 is a wasteful number, since it uses less digits than its factorization.

89821748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22455441 (or 22455439 counting only the distinct ones).

The product of its digits is 258048, while the sum is 47.

The square root of 89821748 is about 9477.4336188654. The cubic root of 89821748 is about 447.8444200948.

The spelling of 89821748 in words is "eighty-nine million, eight hundred twenty-one thousand, seven hundred forty-eight".