99000641 has 4 divisors (see below), whose sum is σ = 101676372. Its totient is φ = 96324912.

The previous prime is 99000619. The next prime is 99000647. The reversal of 99000641 is 14600099.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75186241 + 23814400 = 8671^2 + 4880^2 .

It is a de Polignac number, because none of the positive numbers 2^k-99000641 is a prime.

It is a super-2 number, since 2×99000641² = 19602253836821762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99000647) 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, 1337810 + ... + 1337883.

It is an arithmetic number, because the mean of its divisors is an integer number (25419093).

Almost surely, 2^99000641 is an apocalyptic number.

It is an amenable number.

99000641 is a deficient number, since it is larger than the sum of its proper divisors (2675731).

99000641 is a wasteful number, since it uses less digits than its factorization.

99000641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675730.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 99000641 is about 9949.9065824760. The cubic root of 99000641 is about 462.6074993362.

The spelling of 99000641 in words is "ninety-nine million, six hundred forty-one", and thus it is an aban number.