308741 has 4 divisors (see below), whose sum is σ = 312300. Its totient is φ = 305184.

The previous prime is 308723. The next prime is 308761. The reversal of 308741 is 147803.

308741 = 9² + 10² + ... + 97².

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: 147803 = 61 ⋅2423.

It can be written as a sum of positive squares in 2 ways, for example, as 28900 + 279841 = 170^2 + 529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-308741 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 (308701) 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, 1646 + ... + 1823.

It is an arithmetic number, because the mean of its divisors is an integer number (78075).

2³⁰⁸⁷⁴¹ is an apocalyptic number.

It is an amenable number.

308741 is a deficient number, since it is larger than the sum of its proper divisors (3559).

308741 is an equidigital number, since it uses as much as digits as its factorization.

308741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 308741 is about 555.6446706304. The cubic root of 308741 is about 67.5872488583.

The spelling of 308741 in words is "three hundred eight thousand, seven hundred forty-one".