89669620397 has 12 divisors (see below), whose sum is σ = 106019554716. Its totient is φ = 75599677440.

The previous prime is 89669620373. The next prime is 89669620429. The reversal of 89669620397 is 79302696698.

It can be written as a sum of positive squares in 2 ways, for example, as 3056541796 + 86613078601 = 55286^2 + 294301^2 .

It is not a de Polignac number, because 89669620397 - 2¹⁰ = 89669619373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89669620297) 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 11 ways as a sum of consecutive naturals, for example, 14996948 + ... + 15002925.

It is an arithmetic number, because the mean of its divisors is an integer number (8834962893).

Almost surely, 2^89669620397 is an apocalyptic number.

It is an amenable number.

89669620397 is a deficient number, since it is larger than the sum of its proper divisors (16349934319).

89669620397 is a wasteful number, since it uses less digits than its factorization.

89669620397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29999948 (or 29999941 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 65.

The spelling of 89669620397 in words is "eighty-nine billion, six hundred sixty-nine million, six hundred twenty thousand, three hundred ninety-seven".