784827401 has 2 divisors, whose sum is σ = 784827402. Its totient is φ = 784827400.

The previous prime is 784827391. The next prime is 784827427. The reversal of 784827401 is 104728487.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 498405625 + 286421776 = 22325^2 + 16924^2 .

It is a cyclic number.

It is not a de Polignac number, because 784827401 - 2²² = 780633097 is a prime.

It is not a weakly prime, because it can be changed into another prime (784827431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392413700 + 392413701.

It is an arithmetic number, because the mean of its divisors is an integer number (392413701).

Almost surely, 2^784827401 is an apocalyptic number.

It is an amenable number.

784827401 is a deficient number, since it is larger than the sum of its proper divisors (1).

784827401 is an equidigital number, since it uses as much as digits as its factorization.

784827401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100352, while the sum is 41.

The square root of 784827401 is about 28014.7711216779. The cubic root of 784827401 is about 922.4115218839.

The spelling of 784827401 in words is "seven hundred eighty-four million, eight hundred twenty-seven thousand, four hundred one".