987425 has 12 divisors (see below), whose sum is σ = 1238016. Its totient is φ = 781200.

The previous prime is 987391. The next prime is 987433. The reversal of 987425 is 524789.

It is a happy number.

It is not a de Polignac number, because 987425 - 2⁶ = 987361 is a prime.

It is a Duffinian number.

Its product of digits (20160) is a multiple of the sum of its prime factors (448).

It is a Curzon number.

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 987425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3020 + ... + 3330.

It is an arithmetic number, because the mean of its divisors is an integer number (103168).

2⁹⁸⁷⁴²⁵ is an apocalyptic number.

It is an amenable number.

987425 is a deficient number, since it is larger than the sum of its proper divisors (250591).

987425 is a wasteful number, since it uses less digits than its factorization.

987425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 443 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 987425 is about 993.6926084056. The cubic root of 987425 is about 99.5790639479.

The spelling of 987425 in words is "nine hundred eighty-seven thousand, four hundred twenty-five".