89291398993 has 4 divisors (see below), whose sum is σ = 89438502400. Its totient is φ = 89144295588.

The previous prime is 89291398969. The next prime is 89291399027. The reversal of 89291398993 is 39989319298.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89291398993 - 2³³ = 80701464401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89291398943) 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 3 ways as a sum of consecutive naturals, for example, 73550793 + ... + 73552006.

It is an arithmetic number, because the mean of its divisors is an integer number (22359625600).

Almost surely, 2^89291398993 is an apocalyptic number.

It is an amenable number.

89291398993 is a deficient number, since it is larger than the sum of its proper divisors (147103407).

89291398993 is a wasteful number, since it uses less digits than its factorization.

89291398993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147103406.

The product of its digits is 68024448, while the sum is 70.

The spelling of 89291398993 in words is "eighty-nine billion, two hundred ninety-one million, three hundred ninety-eight thousand, nine hundred ninety-three".