89987400441 has 15 divisors (see below), whose sum is σ = 134429656053. Its totient is φ = 59989800420.

The previous prime is 89987400431. The next prime is 89987400463. The reversal of 89987400441 is 14400478998.

The square root of 89987400441 is 299979.

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

89987400441 is a `hidden beast` number, since 89 + 9 + 87 + 40 + 0 + 441 = 666.

It is not a de Polignac number, because 89987400441 - 2⁵ = 89987400409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89987400431) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2683146 + ... + 2716476.

Almost surely, 2^89987400441 is an apocalyptic number.

89987400441 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

89987400441 is the 299979-th square number.

89987400441 is the 149990-th centered octagonal number.

It is an amenable number.

89987400441 is a deficient number, since it is larger than the sum of its proper divisors (44442255612).

89987400441 is an frugal number, since it uses more digits than its factorization.

89987400441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66674 (or 33334 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 89987400441 in words is "eighty-nine billion, nine hundred eighty-seven million, four hundred thousand, four hundred forty-one".