421496371 has 2 divisors, whose sum is σ = 421496372. Its totient is φ = 421496370.

The previous prime is 421496311. The next prime is 421496377. The reversal of 421496371 is 173694124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421496371 - 2²¹ = 419399219 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421496371.

It is not a weakly prime, because it can be changed into another prime (421496377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210748185 + 210748186.

It is an arithmetic number, because the mean of its divisors is an integer number (210748186).

Almost surely, 2^421496371 is an apocalyptic number.

421496371 is a deficient number, since it is larger than the sum of its proper divisors (1).

421496371 is an equidigital number, since it uses as much as digits as its factorization.

421496371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 421496371 is about 20530.3767866057. The cubic root of 421496371 is about 749.7755601016.

The spelling of 421496371 in words is "four hundred twenty-one million, four hundred ninety-six thousand, three hundred seventy-one".