102797889 has 8 divisors (see below), whose sum is σ = 137115840. Its totient is φ = 68505936.

The previous prime is 102797887. The next prime is 102797909. The reversal of 102797889 is 988797201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102797889 - 2¹ = 102797887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102797887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6372 + ... + 15690.

It is an arithmetic number, because the mean of its divisors is an integer number (17139480).

Almost surely, 2^102797889 is an apocalyptic number.

It is an amenable number.

102797889 is a deficient number, since it is larger than the sum of its proper divisors (34317951).

102797889 is an equidigital number, since it uses as much as digits as its factorization.

102797889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12999.

The product of its (nonzero) digits is 508032, while the sum is 51.

The square root of 102797889 is about 10138.9293813499. The cubic root of 102797889 is about 468.4480104289.

The spelling of 102797889 in words is "one hundred two million, seven hundred ninety-seven thousand, eight hundred eighty-nine".