89240409 has 12 divisors (see below), whose sum is σ = 129559716. Its totient is φ = 59190432.

The previous prime is 89240407. The next prime is 89240441. The reversal of 89240409 is 90404298.

It is a happy number.

89240409 is a `hidden beast` number, since 8 + 9 + 240 + 409 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 80946009 + 8294400 = 8997^2 + 2880^2 .

It is not a de Polignac number, because 89240409 - 2¹ = 89240407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89240407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23394 + ... + 26939.

It is an arithmetic number, because the mean of its divisors is an integer number (10796643).

Almost surely, 2^89240409 is an apocalyptic number.

It is an amenable number.

89240409 is a deficient number, since it is larger than the sum of its proper divisors (40319307).

89240409 is a wasteful number, since it uses less digits than its factorization.

89240409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50536 (or 50533 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 89240409 is about 9446.7141906591. The cubic root of 89240409 is about 446.8761574554.

The spelling of 89240409 in words is "eighty-nine million, two hundred forty thousand, four hundred nine".