109408477 has 2 divisors, whose sum is σ = 109408478. Its totient is φ = 109408476.

The previous prime is 109408427. The next prime is 109408489. The reversal of 109408477 is 774804901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93296281 + 16112196 = 9659^2 + 4014^2 .

It is a cyclic number.

It is not a de Polignac number, because 109408477 - 2⁷ = 109408349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109408417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54704238 + 54704239.

It is an arithmetic number, because the mean of its divisors is an integer number (54704239).

Almost surely, 2^109408477 is an apocalyptic number.

It is an amenable number.

109408477 is a deficient number, since it is larger than the sum of its proper divisors (1).

109408477 is an equidigital number, since it uses as much as digits as its factorization.

109408477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 109408477 is about 10459.8507159519. The cubic root of 109408477 is about 478.2815824853.

The spelling of 109408477 in words is "one hundred nine million, four hundred eight thousand, four hundred seventy-seven".