89784406 has 16 divisors (see below), whose sum is σ = 139579200. Its totient is φ = 43263808.

The previous prime is 89784403. The next prime is 89784421. The reversal of 89784406 is 60448798.

It is a happy number.

It is a super-2 number, since 2×89784406² = 16122479121545672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89784403) 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, 40626 + ... + 42778.

It is an arithmetic number, because the mean of its divisors is an integer number (8723700).

Almost surely, 2^89784406 is an apocalyptic number.

89784406 is a deficient number, since it is larger than the sum of its proper divisors (49794794).

89784406 is a wasteful number, since it uses less digits than its factorization.

89784406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 89784406 is about 9475.4633659785. The cubic root of 89784406 is about 447.7823500329.

The spelling of 89784406 in words is "eighty-nine million, seven hundred eighty-four thousand, four hundred six".