307949 has 4 divisors (see below), whose sum is σ = 311100. Its totient is φ = 304800.

The previous prime is 307939. The next prime is 307969. The reversal of 307949 is 949703.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949703 = 101 ⋅9403.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 133225 = 418^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 307949 - 2⁸ = 307693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424 + ... + 1625.

It is an arithmetic number, because the mean of its divisors is an integer number (77775).

2³⁰⁷⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

307949 is a deficient number, since it is larger than the sum of its proper divisors (3151).

307949 is a wasteful number, since it uses less digits than its factorization.

307949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 307949 is about 554.9315273076. The cubic root of 307949 is about 67.5294064830.

It can be divided in two parts, 30794 and 9, that added together give a palindrome (30803).

The spelling of 307949 in words is "three hundred seven thousand, nine hundred forty-nine".