102899897 has 4 divisors (see below), whose sum is σ = 102936960. Its totient is φ = 102862836.

The previous prime is 102899891. The next prime is 102899921. The reversal of 102899897 is 798998201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 798998201 = 41 ⋅19487761.

It is a cyclic number.

It is not a de Polignac number, because 102899897 - 2²⁶ = 35791033 is a prime.

It is a super-2 number, since 2×102899897² = 21176777605221218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102899891) 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, 13997 + ... + 20042.

It is an arithmetic number, because the mean of its divisors is an integer number (25734240).

Almost surely, 2^102899897 is an apocalyptic number.

It is an amenable number.

102899897 is a deficient number, since it is larger than the sum of its proper divisors (37063).

102899897 is an equidigital number, since it uses as much as digits as its factorization.

102899897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37062.

The product of its (nonzero) digits is 653184, while the sum is 53.

The square root of 102899897 is about 10143.9586454204. The cubic root of 102899897 is about 468.6029087046.

The spelling of 102899897 in words is "one hundred two million, eight hundred ninety-nine thousand, eight hundred ninety-seven".