99488945 has 4 divisors (see below), whose sum is σ = 119386740. Its totient is φ = 79591152.

The previous prime is 99488941. The next prime is 99488957. The reversal of 99488945 is 54988499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54988499 = 211 ⋅260609.

It can be written as a sum of positive squares in 2 ways, for example, as 76755121 + 22733824 = 8761^2 + 4768^2 .

It is a cyclic number.

It is not a de Polignac number, because 99488945 - 2² = 99488941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99488941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9948890 + ... + 9948899.

It is an arithmetic number, because the mean of its divisors is an integer number (29846685).

Almost surely, 2^99488945 is an apocalyptic number.

It is an amenable number.

99488945 is a deficient number, since it is larger than the sum of its proper divisors (19897795).

99488945 is a wasteful number, since it uses less digits than its factorization.

99488945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19897794.

The product of its digits is 3732480, while the sum is 56.

The square root of 99488945 is about 9974.4145191585. The cubic root of 99488945 is about 463.3668301554.

The spelling of 99488945 in words is "ninety-nine million, four hundred eighty-eight thousand, nine hundred forty-five".