99617450 has 48 divisors (see below), whose sum is σ = 197665920. Its totient is φ = 37221120.

The previous prime is 99617449. The next prime is 99617459. The reversal of 99617450 is 5471699.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 99617398 and 99617407.

It is not an unprimeable number, because it can be changed into a prime (99617459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138191 + ... + 138909.

It is an arithmetic number, because the mean of its divisors is an integer number (4118040).

Almost surely, 2^99617450 is an apocalyptic number.

99617450 is a deficient number, since it is larger than the sum of its proper divisors (98048470).

99617450 is a wasteful number, since it uses less digits than its factorization.

99617450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 99617450 is about 9980.8541718632. The cubic root of 99617450 is about 463.5662470715.

The spelling of 99617450 in words is "ninety-nine million, six hundred seventeen thousand, four hundred fifty".