89936221831 has 8 divisors (see below), whose sum is σ = 90052454624. Its totient is φ = 89820057600.

The previous prime is 89936221807. The next prime is 89936221889. The reversal of 89936221831 is 13812263998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 12-Lehmer number, since φ(89936221831) divides (89936221831-1)¹².

It is a cyclic number.

It is not a de Polignac number, because 89936221831 - 2¹¹ = 89936219783 is a prime.

It is a super-2 number, since 2×89936221831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89936221801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2926015 + ... + 2956591.

It is an arithmetic number, because the mean of its divisors is an integer number (11256556828).

Almost surely, 2^89936221831 is an apocalyptic number.

89936221831 is a deficient number, since it is larger than the sum of its proper divisors (116232793).

89936221831 is a wasteful number, since it uses less digits than its factorization.

89936221831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34281.

The product of its digits is 1119744, while the sum is 52.

The spelling of 89936221831 in words is "eighty-nine billion, nine hundred thirty-six million, two hundred twenty-one thousand, eight hundred thirty-one".