425356979 has 2 divisors, whose sum is σ = 425356980. Its totient is φ = 425356978.

The previous prime is 425356961. The next prime is 425356991. The reversal of 425356979 is 979653524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425356979 - 2¹⁶ = 425291443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425356579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212678489 + 212678490.

It is an arithmetic number, because the mean of its divisors is an integer number (212678490).

Almost surely, 2^425356979 is an apocalyptic number.

425356979 is a deficient number, since it is larger than the sum of its proper divisors (1).

425356979 is an equidigital number, since it uses as much as digits as its factorization.

425356979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 50.

The square root of 425356979 is about 20624.1843232648. The cubic root of 425356979 is about 752.0577440522.

The spelling of 425356979 in words is "four hundred twenty-five million, three hundred fifty-six thousand, nine hundred seventy-nine".