7147849 has 2 divisors, whose sum is σ = 7147850. Its totient is φ = 7147848.

The previous prime is 7147831. The next prime is 7147859. The reversal of 7147849 is 9487417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6350400 + 797449 = 2520^2 + 893^2 .

It is a cyclic number.

It is not a de Polignac number, because 7147849 - 2¹⁷ = 7016777 is a prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (7147859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3573924 + 3573925.

It is an arithmetic number, because the mean of its divisors is an integer number (3573925).

Almost surely, 2^7147849 is an apocalyptic number.

It is an amenable number.

7147849 is a deficient number, since it is larger than the sum of its proper divisors (1).

7147849 is an equidigital number, since it uses as much as digits as its factorization.

7147849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The square root of 7147849 is about 2673.5461469741. The cubic root of 7147849 is about 192.6305315841.

The spelling of 7147849 in words is "seven million, one hundred forty-seven thousand, eight hundred forty-nine".