8373649 has 2 divisors, whose sum is σ = 8373650. Its totient is φ = 8373648.

The previous prime is 8373619. The next prime is 8373671. The reversal of 8373649 is 9463738.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8225424 + 148225 = 2868^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 8373649 - 2¹³ = 8365457 is a prime.

It is not a weakly prime, because it can be changed into another prime (8373619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4186824 + 4186825.

It is an arithmetic number, because the mean of its divisors is an integer number (4186825).

Almost surely, 2^8373649 is an apocalyptic number.

It is an amenable number.

8373649 is a deficient number, since it is larger than the sum of its proper divisors (1).

8373649 is an equidigital number, since it uses as much as digits as its factorization.

8373649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 8373649 is about 2893.7257990349. The cubic root of 8373649 is about 203.0664847306.

The spelling of 8373649 in words is "eight million, three hundred seventy-three thousand, six hundred forty-nine".