89649816 has 32 divisors (see below), whose sum is σ = 230184240. Its totient is φ = 29075328.

The previous prime is 89649761. The next prime is 89649827. The reversal of 89649816 is 61894698.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49591 + ... + 51366.

Almost surely, 2^89649816 is an apocalyptic number.

It is an amenable number.

89649816 is an abundant number, since it is smaller than the sum of its proper divisors (140534424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89649816 is a wasteful number, since it uses less digits than its factorization.

89649816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101003 (or 100999 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 89649816 is about 9468.3586750820. The cubic root of 89649816 is about 447.5584909449.

The spelling of 89649816 in words is "eighty-nine million, six hundred forty-nine thousand, eight hundred sixteen".