425434977 has 16 divisors (see below), whose sum is σ = 687572160. Its totient is φ = 257839200.

The previous prime is 425434969. The next prime is 425434981. The reversal of 425434977 is 779434524.

It is not a de Polignac number, because 425434977 - 2³ = 425434969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425434577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715924 + ... + 716517.

It is an arithmetic number, because the mean of its divisors is an integer number (42973260).

Almost surely, 2^425434977 is an apocalyptic number.

It is an amenable number.

425434977 is a deficient number, since it is larger than the sum of its proper divisors (262137183).

425434977 is a wasteful number, since it uses less digits than its factorization.

425434977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432461 (or 1432455 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 425434977 is about 20626.0751719759. The cubic root of 425434977 is about 752.1037096903.

The spelling of 425434977 in words is "four hundred twenty-five million, four hundred thirty-four thousand, nine hundred seventy-seven".