420677 has 2 divisors, whose sum is σ = 420678. Its totient is φ = 420676.

The previous prime is 420671. The next prime is 420683. The reversal of 420677 is 776024.

It is a balanced prime because it is at equal distance from previous prime (420671) and next prime (420683).

It can be written as a sum of positive squares in only one way, i.e., 376996 + 43681 = 614^2 + 209^2 .

It is a cyclic number.

It is not a de Polignac number, because 420677 - 2⁶ = 420613 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420677.

It is not a weakly prime, because it can be changed into another prime (420671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210338 + 210339.

It is an arithmetic number, because the mean of its divisors is an integer number (210339).

2⁴²⁰⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

420677 is a deficient number, since it is larger than the sum of its proper divisors (1).

420677 is an equidigital number, since it uses as much as digits as its factorization.

420677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 420677 is about 648.5961763686. The cubic root of 420677 is about 74.9289401019.

The spelling of 420677 in words is "four hundred twenty thousand, six hundred seventy-seven".