1939347 has 6 divisors (see below), whose sum is σ = 2801292. Its totient is φ = 1292892.

The previous prime is 1939339. The next prime is 1939351. The reversal of 1939347 is 7439391.

It is not a de Polignac number, because 1939347 - 2³ = 1939339 is a prime.

It is a super-2 number, since 2×1939347² = 7522133572818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1939307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107733 + ... + 107750.

It is an arithmetic number, because the mean of its divisors is an integer number (466882).

2^1939347 is an apocalyptic number.

1939347 is a deficient number, since it is larger than the sum of its proper divisors (861945).

1939347 is a wasteful number, since it uses less digits than its factorization.

1939347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215489 (or 215486 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 1939347 is about 1392.6043946505. The cubic root of 1939347 is about 124.7053754499.

The spelling of 1939347 in words is "one million, nine hundred thirty-nine thousand, three hundred forty-seven".