89409005 has 8 divisors (see below), whose sum is σ = 122618112. Its totient is φ = 61309008.

The previous prime is 89408999. The next prime is 89409007. The reversal of 89409005 is 50090498.

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

It is a cyclic number.

It is not a de Polignac number, because 89409005 - 2⁴ = 89408989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 2554543 = 89409005 / (8 + 9 + 4 + 0 + 9 + 0 + 0 + 5).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89409007) 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, 1277237 + ... + 1277306.

It is an arithmetic number, because the mean of its divisors is an integer number (15327264).

Almost surely, 2^89409005 is an apocalyptic number.

It is an amenable number.

89409005 is a deficient number, since it is larger than the sum of its proper divisors (33209107).

89409005 is a wasteful number, since it uses less digits than its factorization.

89409005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554555.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 89409005 is about 9455.6335060111. The cubic root of 89409005 is about 447.1573982718.

The spelling of 89409005 in words is "eighty-nine million, four hundred nine thousand, five".