421446007 has 2 divisors, whose sum is σ = 421446008. Its totient is φ = 421446006.

The previous prime is 421446001. The next prime is 421446019. The reversal of 421446007 is 700644124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421446007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421446001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210723003 + 210723004.

It is an arithmetic number, because the mean of its divisors is an integer number (210723004).

Almost surely, 2^421446007 is an apocalyptic number.

421446007 is a deficient number, since it is larger than the sum of its proper divisors (1).

421446007 is an equidigital number, since it uses as much as digits as its factorization.

421446007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 421446007 is about 20529.1501772480. The cubic root of 421446007 is about 749.7456957081.

The spelling of 421446007 in words is "four hundred twenty-one million, four hundred forty-six thousand, seven".