677439025 has 12 divisors (see below), whose sum is σ = 843132544. Its totient is φ = 539946000.

The previous prime is 677439019. The next prime is 677439029. The reversal of 677439025 is 520934776.

It is not a de Polignac number, because 677439025 - 2¹⁹ = 676914737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677439029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43221 + ... + 56770.

Almost surely, 2^677439025 is an apocalyptic number.

It is an amenable number.

677439025 is a deficient number, since it is larger than the sum of its proper divisors (165693519).

677439025 is a wasteful number, since it uses less digits than its factorization.

677439025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100272 (or 100267 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 677439025 is about 26027.6588459277. The cubic root of 677439025 is about 878.2606073422.

The spelling of 677439025 in words is "six hundred seventy-seven million, four hundred thirty-nine thousand, twenty-five".