99851653 has 4 divisors (see below), whose sum is σ = 108929088. Its totient is φ = 90774220.

The previous prime is 99851639. The next prime is 99851657. The reversal of 99851653 is 35615899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99851653 - 2¹⁷ = 99720581 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 (99851657) 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, 4538701 + ... + 4538722.

It is an arithmetic number, because the mean of its divisors is an integer number (27232272).

Almost surely, 2^99851653 is an apocalyptic number.

It is an amenable number.

99851653 is a deficient number, since it is larger than the sum of its proper divisors (9077435).

99851653 is a wasteful number, since it uses less digits than its factorization.

99851653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9077434.

The product of its digits is 291600, while the sum is 46.

The square root of 99851653 is about 9992.5798971037. The cubic root of 99851653 is about 463.9292478451.

The spelling of 99851653 in words is "ninety-nine million, eight hundred fifty-one thousand, six hundred fifty-three".