421470701 has 2 divisors, whose sum is σ = 421470702. Its totient is φ = 421470700.

The previous prime is 421470661. The next prime is 421470703. The reversal of 421470701 is 107074124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274697476 + 146773225 = 16574^2 + 12115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421470701 is a prime.

Together with 421470703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421470703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210735350 + 210735351.

It is an arithmetic number, because the mean of its divisors is an integer number (210735351).

Almost surely, 2^421470701 is an apocalyptic number.

It is an amenable number.

421470701 is a deficient number, since it is larger than the sum of its proper divisors (1).

421470701 is an equidigital number, since it uses as much as digits as its factorization.

421470701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 421470701 is about 20529.7516059011. The cubic root of 421470701 is about 749.7603388323.

The spelling of 421470701 in words is "four hundred twenty-one million, four hundred seventy thousand, seven hundred one".