1421677 has 2 divisors, whose sum is σ = 1421678. Its totient is φ = 1421676.

The previous prime is 1421669. The next prime is 1421689. The reversal of 1421677 is 7761241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 978121 + 443556 = 989^2 + 666^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421677 - 2³ = 1421669 is a prime.

It is a super-3 number, since 3×1421677³ = 8620333480913447199, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710838 + 710839.

It is an arithmetic number, because the mean of its divisors is an integer number (710839).

2^1421677 is an apocalyptic number.

It is an amenable number.

1421677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421677 is an equidigital number, since it uses as much as digits as its factorization.

1421677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 28.

The square root of 1421677 is about 1192.3409747216. The cubic root of 1421677 is about 112.4433163004.

The spelling of 1421677 in words is "one million, four hundred twenty-one thousand, six hundred seventy-seven".