108947497 has 2 divisors, whose sum is σ = 108947498. Its totient is φ = 108947496.

The previous prime is 108947483. The next prime is 108947513. The reversal of 108947497 is 794749801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84107241 + 24840256 = 9171^2 + 4984^2 .

It is a cyclic number.

It is not a de Polignac number, because 108947497 - 2⁷ = 108947369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108947497.

It is not a weakly prime, because it can be changed into another prime (108947467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54473748 + 54473749.

It is an arithmetic number, because the mean of its divisors is an integer number (54473749).

Almost surely, 2^108947497 is an apocalyptic number.

It is an amenable number.

108947497 is a deficient number, since it is larger than the sum of its proper divisors (1).

108947497 is an equidigital number, since it uses as much as digits as its factorization.

108947497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 108947497 is about 10437.7917683771. The cubic root of 108947497 is about 477.6089087582.

The spelling of 108947497 in words is "one hundred eight million, nine hundred forty-seven thousand, four hundred ninety-seven".