109690837 has 2 divisors, whose sum is σ = 109690838. Its totient is φ = 109690836.

The previous prime is 109690769. The next prime is 109690843. The reversal of 109690837 is 738096901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87497316 + 22193521 = 9354^2 + 4711^2 .

It is a cyclic number.

It is not a de Polignac number, because 109690837 - 2⁷ = 109690709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109690793 and 109690802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109690897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54845418 + 54845419.

It is an arithmetic number, because the mean of its divisors is an integer number (54845419).

Almost surely, 2^109690837 is an apocalyptic number.

It is an amenable number.

109690837 is a deficient number, since it is larger than the sum of its proper divisors (1).

109690837 is an equidigital number, since it uses as much as digits as its factorization.

109690837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 109690837 is about 10473.3393433040. The cubic root of 109690837 is about 478.6926767053.

The spelling of 109690837 in words is "one hundred nine million, six hundred ninety thousand, eight hundred thirty-seven".