99784465 has 48 divisors (see below), whose sum is σ = 140652288. Its totient is φ = 67760000.

The previous prime is 99784463. The next prime is 99784469. The reversal of 99784465 is 56448799.

It is a happy number.

It is not a de Polignac number, because 99784465 - 2¹ = 99784463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99784463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 987915 + ... + 988015.

It is an arithmetic number, because the mean of its divisors is an integer number (2930256).

Almost surely, 2^99784465 is an apocalyptic number.

It is an amenable number.

99784465 is a deficient number, since it is larger than the sum of its proper divisors (40867823).

99784465 is a wasteful number, since it uses less digits than its factorization.

99784465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 211 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 99784465 is about 9989.2174368166. The cubic root of 99784465 is about 463.8251685392.

The spelling of 99784465 in words is "ninety-nine million, seven hundred eighty-four thousand, four hundred sixty-five".