99653797 has 4 divisors (see below), whose sum is σ = 100013836. Its totient is φ = 99293760.

The previous prime is 99653791. The next prime is 99653819. The reversal of 99653797 is 79735699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79735699 = 103 ⋅774133.

It can be written as a sum of positive squares in 2 ways, for example, as 33166081 + 66487716 = 5759^2 + 8154^2 .

It is a cyclic number.

It is not a de Polignac number, because 99653797 - 2³ = 99653789 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 (99653791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179604 + ... + 180157.

It is an arithmetic number, because the mean of its divisors is an integer number (25003459).

Almost surely, 2^99653797 is an apocalyptic number.

99653797 is the 5764-th hex number.

It is an amenable number.

99653797 is a deficient number, since it is larger than the sum of its proper divisors (360039).

99653797 is a wasteful number, since it uses less digits than its factorization.

99653797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360038.

The product of its digits is 3214890, while the sum is 55.

The square root of 99653797 is about 9982.6748419449. The cubic root of 99653797 is about 463.6226200381.

The spelling of 99653797 in words is "ninety-nine million, six hundred fifty-three thousand, seven hundred ninety-seven".