109697685 has 32 divisors (see below), whose sum is σ = 191849472. Its totient is φ = 53283840.

The previous prime is 109697683. The next prime is 109697699. The reversal of 109697685 is 586796901.

It is not a de Polignac number, because 109697685 - 2¹ = 109697683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109697683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 967 + ... + 14843.

It is an arithmetic number, because the mean of its divisors is an integer number (5995296).

Almost surely, 2^109697685 is an apocalyptic number.

109697685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109697685 is a deficient number, since it is larger than the sum of its proper divisors (82151787).

109697685 is a wasteful number, since it uses less digits than its factorization.

109697685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13933.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 109697685 is about 10473.6662635392. Note that the first 3 decimals coincide. The cubic root of 109697685 is about 478.7026380941.

The spelling of 109697685 in words is "one hundred nine million, six hundred ninety-seven thousand, six hundred eighty-five".