5109947 has 4 divisors (see below), whose sum is σ = 5274816. Its totient is φ = 4945080.

The previous prime is 5109919. The next prime is 5109961. The reversal of 5109947 is 7499015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5109947 - 2⁶ = 5109883 is a prime.

It is a super-2 number, since 2×5109947² = 52223116685618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5109967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82388 + ... + 82449.

It is an arithmetic number, because the mean of its divisors is an integer number (1318704).

Almost surely, 2^5109947 is an apocalyptic number.

5109947 is a deficient number, since it is larger than the sum of its proper divisors (164869).

5109947 is a wasteful number, since it uses less digits than its factorization.

5109947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164868.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 5109947 is about 2260.5191881513. The cubic root of 5109947 is about 172.2418964382.

The spelling of 5109947 in words is "five million, one hundred nine thousand, nine hundred forty-seven".