102809697 has 8 divisors (see below), whose sum is σ = 137147520. Its totient is φ = 68505840.

The previous prime is 102809677. The next prime is 102809699. The reversal of 102809697 is 796908201.

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

It is not a de Polignac number, because 102809697 - 2¹² = 102805601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102809699) 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, 297 + ... + 14342.

It is an arithmetic number, because the mean of its divisors is an integer number (17143440).

Almost surely, 2^102809697 is an apocalyptic number.

It is an amenable number.

102809697 is a deficient number, since it is larger than the sum of its proper divisors (34337823).

102809697 is a wasteful number, since it uses less digits than its factorization.

102809697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16983.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 102809697 is about 10139.5116746321. The cubic root of 102809697 is about 468.4659460188.

The spelling of 102809697 in words is "one hundred two million, eight hundred nine thousand, six hundred ninety-seven".