89409890 has 32 divisors (see below), whose sum is σ = 166786560. Its totient is φ = 34473600.

The previous prime is 89409869. The next prime is 89409907. The reversal of 89409890 is 9890498.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117110 + ... + 117870.

It is an arithmetic number, because the mean of its divisors is an integer number (5212080).

Almost surely, 2^89409890 is an apocalyptic number.

89409890 is a deficient number, since it is larger than the sum of its proper divisors (77376670).

89409890 is a wasteful number, since it uses less digits than its factorization.

89409890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 89409890 is about 9455.6803033944. The cubic root of 89409890 is about 447.1588736377.

The spelling of 89409890 in words is "eighty-nine million, four hundred nine thousand, eight hundred ninety".