421159379 has 2 divisors, whose sum is σ = 421159380. Its totient is φ = 421159378.

The previous prime is 421159369. The next prime is 421159391. The reversal of 421159379 is 973951124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421159379 - 2¹² = 421155283 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (421159369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210579689 + 210579690.

It is an arithmetic number, because the mean of its divisors is an integer number (210579690).

Almost surely, 2^421159379 is an apocalyptic number.

421159379 is a deficient number, since it is larger than the sum of its proper divisors (1).

421159379 is an equidigital number, since it uses as much as digits as its factorization.

421159379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The square root of 421159379 is about 20522.1679897617. The cubic root of 421159379 is about 749.5756882877.

The spelling of 421159379 in words is "four hundred twenty-one million, one hundred fifty-nine thousand, three hundred seventy-nine".