109211697 has 12 divisors (see below), whose sum is σ = 180286080. Its totient is φ = 62406648.

The previous prime is 109211653. The next prime is 109211719. The reversal of 109211697 is 796112901.

It is not a de Polignac number, because 109211697 - 2¹⁵ = 109178929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109211197) 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, 866697 + ... + 866822.

It is an arithmetic number, because the mean of its divisors is an integer number (15023840).

Almost surely, 2^109211697 is an apocalyptic number.

It is an amenable number.

109211697 is a deficient number, since it is larger than the sum of its proper divisors (71074383).

109211697 is a wasteful number, since it uses less digits than its factorization.

109211697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733532 (or 1733529 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 109211697 is about 10450.4400385821. The cubic root of 109211697 is about 477.9946676926.

The spelling of 109211697 in words is "one hundred nine million, two hundred eleven thousand, six hundred ninety-seven".