7854949 has 2 divisors, whose sum is σ = 7854950. Its totient is φ = 7854948.

The previous prime is 7854893. The next prime is 7854953. The reversal of 7854949 is 9494587.

7854949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6890625 + 964324 = 2625^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 7854949 - 2⁹ = 7854437 is a prime.

It is a super-3 number, since 3×7854949³ (a number of 22 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7854899 and 7854908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7854449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3927474 + 3927475.

It is an arithmetic number, because the mean of its divisors is an integer number (3927475).

Almost surely, 2^7854949 is an apocalyptic number.

It is an amenable number.

7854949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7854949 is an equidigital number, since it uses as much as digits as its factorization.

7854949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 7854949 is about 2802.6681929904. The cubic root of 7854949 is about 198.7838616936.

The spelling of 7854949 in words is "seven million, eight hundred fifty-four thousand, nine hundred forty-nine".