8239801 has 2 divisors, whose sum is σ = 8239802. Its totient is φ = 8239800.

The previous prime is 8239783. The next prime is 8239823. The reversal of 8239801 is 1089328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6497401 + 1742400 = 2549^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 8239801 - 2¹¹ = 8237753 is a prime.

It is not a weakly prime, because it can be changed into another prime (8239871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4119900 + 4119901.

It is an arithmetic number, because the mean of its divisors is an integer number (4119901).

Almost surely, 2^8239801 is an apocalyptic number.

It is an amenable number.

8239801 is a deficient number, since it is larger than the sum of its proper divisors (1).

8239801 is an equidigital number, since it uses as much as digits as its factorization.

8239801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 8239801 is about 2870.5053562047. The cubic root of 8239801 is about 201.9787008226.

Subtracting from 8239801 its sum of digits (31), we obtain a triangular number (8239770 = T₄₀₅₉).

The spelling of 8239801 in words is "eight million, two hundred thirty-nine thousand, eight hundred one".