109940697 has 6 divisors (see below), whose sum is σ = 158803242. Its totient is φ = 73293792.

The previous prime is 109940687. The next prime is 109940749. The reversal of 109940697 is 796049901.

It can be written as a sum of positive squares in only one way, i.e., 93489561 + 16451136 = 9669^2 + 4056^2 .

It is not a de Polignac number, because 109940697 - 2²³ = 101552089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109940617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6107808 + ... + 6107825.

It is an arithmetic number, because the mean of its divisors is an integer number (26467207).

Almost surely, 2^109940697 is an apocalyptic number.

It is an amenable number.

109940697 is a deficient number, since it is larger than the sum of its proper divisors (48862545).

109940697 is a wasteful number, since it uses less digits than its factorization.

109940697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12215639 (or 12215636 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 109940697 is about 10485.2609409590. The cubic root of 109940697 is about 479.0558655094.

The spelling of 109940697 in words is "one hundred nine million, nine hundred forty thousand, six hundred ninety-seven".