89120381 has 16 divisors (see below), whose sum is σ = 107593728. Its totient is φ = 72198000.

The previous prime is 89120333. The next prime is 89120387. The reversal of 89120381 is 18302198.

It is not a de Polignac number, because 89120381 - 2¹⁴ = 89103997 is a prime.

It is a super-2 number, since 2×89120381² = 15884884619170322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89120387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4556 + ... + 14106.

It is an arithmetic number, because the mean of its divisors is an integer number (6724608).

Almost surely, 2^89120381 is an apocalyptic number.

It is an amenable number.

89120381 is a deficient number, since it is larger than the sum of its proper divisors (18473347).

89120381 is a wasteful number, since it uses less digits than its factorization.

89120381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9632.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 89120381 is about 9440.3591563033. The cubic root of 89120381 is about 446.6757186725.

The spelling of 89120381 in words is "eighty-nine million, one hundred twenty thousand, three hundred eighty-one".