98904589081 has 3 divisors (see below), whose sum is σ = 98904903573. Its totient is φ = 98904274590.

The previous prime is 98904589061. The next prime is 98904589093. The reversal of 98904589081 is 18098540989.

The square root of 98904589081 is 314491.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 98904589081 - 2⁷ = 98904588953 is a prime.

It is a super-2 number, since 2×98904589081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98904589061) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 157246 + ... + 471736.

It is an arithmetic number, because the mean of its divisors is an integer number (32968301191).

Almost surely, 2^98904589081 is an apocalyptic number.

98904589081 is the 314491-st square number.

98904589081 is the 157246-th centered octagonal number.

It is an amenable number.

98904589081 is a deficient number, since it is larger than the sum of its proper divisors (314492).

98904589081 is an frugal number, since it uses more digits than its factorization.

98904589081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628982 (or 314491 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 61.

The spelling of 98904589081 in words is "ninety-eight billion, nine hundred four million, five hundred eighty-nine thousand, eighty-one".