421450937 has 2 divisors, whose sum is σ = 421450938. Its totient is φ = 421450936.

The previous prime is 421450889. The next prime is 421450943. The reversal of 421450937 is 739054124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382750096 + 38700841 = 19564^2 + 6221^2 .

It is a cyclic number.

It is not a de Polignac number, because 421450937 - 2¹⁰ = 421449913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421450897 and 421450906.

It is not a weakly prime, because it can be changed into another prime (421450537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210725468 + 210725469.

It is an arithmetic number, because the mean of its divisors is an integer number (210725469).

Almost surely, 2^421450937 is an apocalyptic number.

It is an amenable number.

421450937 is a deficient number, since it is larger than the sum of its proper divisors (1).

421450937 is an equidigital number, since it uses as much as digits as its factorization.

421450937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 421450937 is about 20529.2702500600. The cubic root of 421450937 is about 749.7486191604.

The spelling of 421450937 in words is "four hundred twenty-one million, four hundred fifty thousand, nine hundred thirty-seven".