8378633 has 2 divisors, whose sum is σ = 8378634. Its totient is φ = 8378632.

The previous prime is 8378621. The next prime is 8378641. The reversal of 8378633 is 3368738.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4892944 + 3485689 = 2212^2 + 1867^2 .

It is a cyclic number.

It is not a de Polignac number, because 8378633 - 2¹⁸ = 8116489 is a prime.

It is not a weakly prime, because it can be changed into another prime (8378653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4189316 + 4189317.

It is an arithmetic number, because the mean of its divisors is an integer number (4189317).

Almost surely, 2^8378633 is an apocalyptic number.

It is an amenable number.

8378633 is a deficient number, since it is larger than the sum of its proper divisors (1).

8378633 is an equidigital number, since it uses as much as digits as its factorization.

8378633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 8378633 is about 2894.5868444391. The cubic root of 8378633 is about 203.1067651639.

The spelling of 8378633 in words is "eight million, three hundred seventy-eight thousand, six hundred thirty-three".