421077253 has 2 divisors, whose sum is σ = 421077254. Its totient is φ = 421077252.

The previous prime is 421077229. The next prime is 421077269. The reversal of 421077253 is 352770124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393546244 + 27531009 = 19838^2 + 5247^2 .

It is a cyclic number.

It is not a de Polignac number, because 421077253 - 2⁹ = 421076741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421077053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210538626 + 210538627.

It is an arithmetic number, because the mean of its divisors is an integer number (210538627).

Almost surely, 2^421077253 is an apocalyptic number.

It is an amenable number.

421077253 is a deficient number, since it is larger than the sum of its proper divisors (1).

421077253 is an equidigital number, since it uses as much as digits as its factorization.

421077253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 421077253 is about 20520.1669827514. The cubic root of 421077253 is about 749.5269627474.

The spelling of 421077253 in words is "four hundred twenty-one million, seventy-seven thousand, two hundred fifty-three".