109286397 has 12 divisors (see below), whose sum is σ = 172209024. Its totient is φ = 66234120.

The previous prime is 109286381. The next prime is 109286453. The reversal of 109286397 is 793682901.

109286397 is a `hidden beast` number, since 1 + 0 + 9 + 2 + 8 + 639 + 7 = 666.

It is not a de Polignac number, because 109286397 - 2⁴ = 109286381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109286497) 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, 551853 + ... + 552050.

It is an arithmetic number, because the mean of its divisors is an integer number (14350752).

Almost surely, 2^109286397 is an apocalyptic number.

It is an amenable number.

109286397 is a deficient number, since it is larger than the sum of its proper divisors (62922627).

109286397 is a wasteful number, since it uses less digits than its factorization.

109286397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103920 (or 1103917 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 109286397 is about 10454.0134398230. The cubic root of 109286397 is about 478.1036244705.

The spelling of 109286397 in words is "one hundred nine million, two hundred eighty-six thousand, three hundred ninety-seven".