109297947 has 16 divisors (see below), whose sum is σ = 168331392. Its totient is φ = 62344320.

The previous prime is 109297943. The next prime is 109297949. The reversal of 109297947 is 749792901.

It is a happy number.

It is not a de Polignac number, because 109297947 - 2² = 109297943 is a prime.

It is a super-3 number, since 3×109297947³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109297896 and 109297905.

It is not an unprimeable number, because it can be changed into a prime (109297943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96853 + ... + 97974.

It is an arithmetic number, because the mean of its divisors is an integer number (10520712).

Almost surely, 2^109297947 is an apocalyptic number.

109297947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

109297947 is a deficient number, since it is larger than the sum of its proper divisors (59033445).

109297947 is a wasteful number, since it uses less digits than its factorization.

109297947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194858.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 109297947 is about 10454.5658446441. The cubic root of 109297947 is about 478.1204667689.

The spelling of 109297947 in words is "one hundred nine million, two hundred ninety-seven thousand, nine hundred forty-seven".