102680397 has 12 divisors (see below), whose sum is σ = 148469724. Its totient is φ = 68382720.

The previous prime is 102680393. The next prime is 102680399. The reversal of 102680397 is 793086201.

102680397 is a `hidden beast` number, since 1 + 0 + 268 + 0 + 397 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 84989961 + 17690436 = 9219^2 + 4206^2 .

It is not a de Polignac number, because 102680397 - 2² = 102680393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102680393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4173 + ... + 14925.

It is an arithmetic number, because the mean of its divisors is an integer number (12372477).

Almost surely, 2^102680397 is an apocalyptic number.

It is an amenable number.

102680397 is a deficient number, since it is larger than the sum of its proper divisors (45789327).

102680397 is a wasteful number, since it uses less digits than its factorization.

102680397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11820 (or 11817 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 102680397 is about 10133.1336219355. The cubic root of 102680397 is about 468.2694727947.

The spelling of 102680397 in words is "one hundred two million, six hundred eighty thousand, three hundred ninety-seven".