425977 has 2 divisors, whose sum is σ = 425978. Its totient is φ = 425976.

The previous prime is 425959. The next prime is 425987. The reversal of 425977 is 779524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215296 + 210681 = 464^2 + 459^2 .

It is a cyclic number.

It is not a de Polignac number, because 425977 - 2¹⁵ = 393209 is a prime.

It is not a weakly prime, because it can be changed into another prime (425987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212988 + 212989.

It is an arithmetic number, because the mean of its divisors is an integer number (212989).

2⁴²⁵⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

425977 is a deficient number, since it is larger than the sum of its proper divisors (1).

425977 is an equidigital number, since it uses as much as digits as its factorization.

425977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 34.

The square root of 425977 is about 652.6691351673. The cubic root of 425977 is about 75.2422978618.

The spelling of 425977 in words is "four hundred twenty-five thousand, nine hundred seventy-seven".