89400387869 has 8 divisors (see below), whose sum is σ = 97855658712. Its totient is φ = 81170591040.

The previous prime is 89400387793. The next prime is 89400387877. The reversal of 89400387869 is 96878300498.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5176802500 + 84223585369 = 71950^2 + 290213^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89400387869 is a prime.

It is a super-2 number, since 2×89400387869² (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 (89400387169) 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, 56367674 + ... + 56369259.

It is an arithmetic number, because the mean of its divisors is an integer number (12231957339).

Almost surely, 2^89400387869 is an apocalyptic number.

It is an amenable number.

89400387869 is a deficient number, since it is larger than the sum of its proper divisors (8455270843).

89400387869 is a wasteful number, since it uses less digits than its factorization.

89400387869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112737007.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 89400387869 in words is "eighty-nine billion, four hundred million, three hundred eighty-seven thousand, eight hundred sixty-nine".