421032947 has 2 divisors, whose sum is σ = 421032948. Its totient is φ = 421032946.

The previous prime is 421032893. The next prime is 421033013. The reversal of 421032947 is 749230124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421032947 - 2⁸ = 421032691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (421034947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210516473 + 210516474.

It is an arithmetic number, because the mean of its divisors is an integer number (210516474).

Almost surely, 2^421032947 is an apocalyptic number.

421032947 is a deficient number, since it is larger than the sum of its proper divisors (1).

421032947 is an equidigital number, since it uses as much as digits as its factorization.

421032947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 421032947 is about 20519.0873822400. The cubic root of 421032947 is about 749.5006732672.

The spelling of 421032947 in words is "four hundred twenty-one million, thirty-two thousand, nine hundred forty-seven".