99685063 has 4 divisors (see below), whose sum is σ = 102116448. Its totient is φ = 97253680.

The previous prime is 99684989. The next prime is 99685087. The reversal of 99685063 is 36058699.

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

It is a cyclic number.

It is not a de Polignac number, because 99685063 - 2⁹ = 99684551 is a prime.

It is a super-2 number, since 2×99685063² = 19874223570627938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99685463) 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, 1215631 + ... + 1215712.

It is an arithmetic number, because the mean of its divisors is an integer number (25529112).

Almost surely, 2^99685063 is an apocalyptic number.

99685063 is a deficient number, since it is larger than the sum of its proper divisors (2431385).

99685063 is a wasteful number, since it uses less digits than its factorization.

99685063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431384.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 99685063 is about 9984.2407322740. The cubic root of 99685063 is about 463.6711015797.

It can be divided in two parts, 996 and 85063, that multiplied together give a palindrome (84722748).

The spelling of 99685063 in words is "ninety-nine million, six hundred eighty-five thousand, sixty-three".