329460421 has 2 divisors, whose sum is σ = 329460422. Its totient is φ = 329460420.

The previous prime is 329460413. The next prime is 329460431. The reversal of 329460421 is 124064923.

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., 222337921 + 107122500 = 14911^2 + 10350^2 .

It is an emirp because it is prime and its reverse (124064923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 329460421 - 2³ = 329460413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (329460401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164730210 + 164730211.

It is an arithmetic number, because the mean of its divisors is an integer number (164730211).

Almost surely, 2^329460421 is an apocalyptic number.

It is an amenable number.

329460421 is a deficient number, since it is larger than the sum of its proper divisors (1).

329460421 is an equidigital number, since it uses as much as digits as its factorization.

329460421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 329460421 is about 18151.0446255856. The cubic root of 329460421 is about 690.6654792268.

The spelling of 329460421 in words is "three hundred twenty-nine million, four hundred sixty thousand, four hundred twenty-one".