89451405 has 32 divisors (see below), whose sum is σ = 160128000. Its totient is φ = 47376576.

The previous prime is 89451403. The next prime is 89451407. The reversal of 89451405 is 50415498.

It is an interprime number because it is at equal distance from previous prime (89451403) and next prime (89451407).

It is not a de Polignac number, because 89451405 - 2¹ = 89451403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89451405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89451403) 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, 17892 + ... + 22338.

It is an arithmetic number, because the mean of its divisors is an integer number (5004000).

Almost surely, 2^89451405 is an apocalyptic number.

It is an amenable number.

89451405 is a deficient number, since it is larger than the sum of its proper divisors (70676595).

89451405 is a wasteful number, since it uses less digits than its factorization.

89451405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4610 (or 4604 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 89451405 is about 9457.8752899370. The cubic root of 89451405 is about 447.2280715314.

The spelling of 89451405 in words is "eighty-nine million, four hundred fifty-one thousand, four hundred five".