99527917 has 4 divisors (see below), whose sum is σ = 100554076. Its totient is φ = 98501760.

The previous prime is 99527893. The next prime is 99527921. The reversal of 99527917 is 71972599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71972599 = 4129 ⋅17431.

It can be written as a sum of positive squares in 2 ways, for example, as 66683556 + 32844361 = 8166^2 + 5731^2 .

It is a cyclic number.

It is not a de Polignac number, because 99527917 - 2⁷ = 99527789 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 (99527927) 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, 512934 + ... + 513127.

It is an arithmetic number, because the mean of its divisors is an integer number (25138519).

Almost surely, 2^99527917 is an apocalyptic number.

99527917 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

It is an amenable number.

99527917 is a deficient number, since it is larger than the sum of its proper divisors (1026159).

99527917 is a wasteful number, since it uses less digits than its factorization.

99527917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026158.

The product of its digits is 357210, while the sum is 49.

The square root of 99527917 is about 9976.3679262545. The cubic root of 99527917 is about 463.4273259042.

The spelling of 99527917 in words is "ninety-nine million, five hundred twenty-seven thousand, nine hundred seventeen".