109897047 has 32 divisors (see below), whose sum is σ = 177777600. Its totient is φ = 66686976.

The previous prime is 109897031. The next prime is 109897091. The reversal of 109897047 is 740798901.

It is not a de Polignac number, because 109897047 - 2⁴ = 109897031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109896993 and 109897011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109897247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23479 + ... + 27767.

It is an arithmetic number, because the mean of its divisors is an integer number (5555550).

Almost surely, 2^109897047 is an apocalyptic number.

109897047 is a deficient number, since it is larger than the sum of its proper divisors (67880553).

109897047 is a wasteful number, since it uses less digits than its factorization.

109897047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384 (or 4378 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 109897047 is about 10483.1792410509. The cubic root of 109897047 is about 478.9924569108.

The spelling of 109897047 in words is "one hundred nine million, eight hundred ninety-seven thousand, forty-seven".