99047618 has 4 divisors (see below), whose sum is σ = 148571430. Its totient is φ = 49523808.

The previous prime is 99047617. The next prime is 99047621. The reversal of 99047618 is 81674099.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 84584809 + 14462809 = 9197^2 + 3803^2 .

It is not an unprimeable number, because it can be changed into a prime (99047617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24761903 + ... + 24761906.

Almost surely, 2^99047618 is an apocalyptic number.

99047618 is a deficient number, since it is larger than the sum of its proper divisors (49523812).

99047618 is a wasteful number, since it uses less digits than its factorization.

99047618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49523811.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 99047618 is about 9952.2669779302. The cubic root of 99047618 is about 462.6806587145.

The spelling of 99047618 in words is "ninety-nine million, forty-seven thousand, six hundred eighteen".