99898901 has 2 divisors, whose sum is σ = 99898902. Its totient is φ = 99898900.

The previous prime is 99898889. The next prime is 99898937. The reversal of 99898901 is 10989899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70728100 + 29170801 = 8410^2 + 5401^2 .

It is an emirp because it is prime and its reverse (10989899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99898901 - 2²² = 95704597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99898961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49949450 + 49949451.

It is an arithmetic number, because the mean of its divisors is an integer number (49949451).

Almost surely, 2^99898901 is an apocalyptic number.

It is an amenable number.

99898901 is a deficient number, since it is larger than the sum of its proper divisors (1).

99898901 is an equidigital number, since it uses as much as digits as its factorization.

99898901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 53.

The square root of 99898901 is about 9994.9437717278. The cubic root of 99898901 is about 464.0024106221.

It can be divided in two parts, 998 and 98901, that added together give a palindrome (99899).

The spelling of 99898901 in words is "ninety-nine million, eight hundred ninety-eight thousand, nine hundred one".