8447401 has 2 divisors, whose sum is σ = 8447402. Its totient is φ = 8447400.

The previous prime is 8447399. The next prime is 8447423. The reversal of 8447401 is 1047448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6760000 + 1687401 = 2600^2 + 1299^2 .

It is a cyclic number.

It is not a de Polignac number, because 8447401 - 2¹ = 8447399 is a prime.

Together with 8447399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8447401.

It is not a weakly prime, because it can be changed into another prime (8447431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4223700 + 4223701.

It is an arithmetic number, because the mean of its divisors is an integer number (4223701).

Almost surely, 2^8447401 is an apocalyptic number.

It is an amenable number.

8447401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8447401 is an equidigital number, since it uses as much as digits as its factorization.

8447401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 8447401 is about 2906.4412947796. The cubic root of 8447401 is about 203.6609210767.

The spelling of 8447401 in words is "eight million, four hundred forty-seven thousand, four hundred one".