492078401 has 2 divisors, whose sum is σ = 492078402. Its totient is φ = 492078400.

The previous prime is 492078373. The next prime is 492078403. The reversal of 492078401 is 104870294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248094001 + 243984400 = 15751^2 + 15620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492078401 is a prime.

Together with 492078403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (492078403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246039200 + 246039201.

It is an arithmetic number, because the mean of its divisors is an integer number (246039201).

Almost surely, 2^492078401 is an apocalyptic number.

It is an amenable number.

492078401 is a deficient number, since it is larger than the sum of its proper divisors (1).

492078401 is an equidigital number, since it uses as much as digits as its factorization.

492078401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 492078401 is about 22182.8402374448. The cubic root of 492078401 is about 789.4866081673.

The spelling of 492078401 in words is "four hundred ninety-two million, seventy-eight thousand, four hundred one".