408271379 has 2 divisors, whose sum is σ = 408271380. Its totient is φ = 408271378.

The previous prime is 408271249. The next prime is 408271393. The reversal of 408271379 is 973172804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 408271379 - 2¹² = 408267283 is a prime.

It is not a weakly prime, because it can be changed into another prime (408271679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204135689 + 204135690.

It is an arithmetic number, because the mean of its divisors is an integer number (204135690).

Almost surely, 2^408271379 is an apocalyptic number.

408271379 is a deficient number, since it is larger than the sum of its proper divisors (1).

408271379 is an equidigital number, since it uses as much as digits as its factorization.

408271379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 408271379 is about 20205.7263912981. The cubic root of 408271379 is about 741.8503602116.

The spelling of 408271379 in words is "four hundred eight million, two hundred seventy-one thousand, three hundred seventy-nine".