8390741 has 4 divisors (see below), whose sum is σ = 8884332. Its totient is φ = 7897152.

The previous prime is 8390737. The next prime is 8390743. The reversal of 8390741 is 1470938.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2961841 + 5428900 = 1721^2 + 2330^2 .

It is a cyclic number.

It is not a de Polignac number, because 8390741 - 2² = 8390737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8390698 and 8390707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390743) 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, 246770 + ... + 246803.

It is an arithmetic number, because the mean of its divisors is an integer number (2221083).

Almost surely, 2^8390741 is an apocalyptic number.

It is an amenable number.

8390741 is a deficient number, since it is larger than the sum of its proper divisors (493591).

8390741 is a wasteful number, since it uses less digits than its factorization.

8390741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493590.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 8390741 is about 2896.6775795728. The cubic root of 8390741 is about 203.2045549049.

The spelling of 8390741 in words is "eight million, three hundred ninety thousand, seven hundred forty-one".