998587425 has 24 divisors (see below), whose sum is σ = 1801090080. Its totient is φ = 484163200.

The previous prime is 998587423. The next prime is 998587459. The reversal of 998587425 is 524785899.

It is a happy number.

It is not a de Polignac number, because 998587425 - 2¹ = 998587423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998587423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 604380 + ... + 606029.

It is an arithmetic number, because the mean of its divisors is an integer number (75045420).

Almost surely, 2^998587425 is an apocalyptic number.

It is an amenable number.

998587425 is a deficient number, since it is larger than the sum of its proper divisors (802502655).

998587425 is a wasteful number, since it uses less digits than its factorization.

998587425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210433 (or 1210428 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 57.

The square root of 998587425 is about 31600.4339368940. The cubic root of 998587425 is about 999.5289197849.

It can be divided in two parts, 9985874 and 25, that added together give a palindrome (9985899).

The spelling of 998587425 in words is "nine hundred ninety-eight million, five hundred eighty-seven thousand, four hundred twenty-five".