89787369 has 32 divisors (see below), whose sum is σ = 144686080. Its totient is φ = 48382272.

The previous prime is 89787367. The next prime is 89787457. The reversal of 89787369 is 96378798.

It is not a de Polignac number, because 89787369 - 2¹ = 89787367 is a prime.

It is a super-2 number, since 2×89787369² = 16123543263884322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89787367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122127 + ... + 122859.

It is an arithmetic number, because the mean of its divisors is an integer number (4521440).

Almost surely, 2^89787369 is an apocalyptic number.

It is an amenable number.

89787369 is a deficient number, since it is larger than the sum of its proper divisors (54898711).

89787369 is a wasteful number, since it uses less digits than its factorization.

89787369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069.

The product of its digits is 4572288, while the sum is 57.

The square root of 89787369 is about 9475.6197158814. The cubic root of 89787369 is about 447.7872757751.

The spelling of 89787369 in words is "eighty-nine million, seven hundred eighty-seven thousand, three hundred sixty-nine".