109640477 has 2 divisors, whose sum is σ = 109640478. Its totient is φ = 109640476.

The previous prime is 109640423. The next prime is 109640501. The reversal of 109640477 is 774046901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68244121 + 41396356 = 8261^2 + 6434^2 .

It is a cyclic number.

It is not a de Polignac number, because 109640477 - 2¹⁴ = 109624093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109640477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109640407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54820238 + 54820239.

It is an arithmetic number, because the mean of its divisors is an integer number (54820239).

Almost surely, 2^109640477 is an apocalyptic number.

It is an amenable number.

109640477 is a deficient number, since it is larger than the sum of its proper divisors (1).

109640477 is an equidigital number, since it uses as much as digits as its factorization.

109640477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 109640477 is about 10470.9348675273. The cubic root of 109640477 is about 478.6194081928.

The spelling of 109640477 in words is "one hundred nine million, six hundred forty thousand, four hundred seventy-seven".