988407 has 24 divisors (see below), whose sum is σ = 1691040. Its totient is φ = 544320.

The previous prime is 988367. The next prime is 988409. The reversal of 988407 is 704889.

It is not a de Polignac number, because 988407 - 2⁶ = 988343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1557 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (70460).

2⁹⁸⁸⁴⁰⁷ is an apocalyptic number.

988407 is a deficient number, since it is larger than the sum of its proper divisors (702633).

988407 is a wasteful number, since it uses less digits than its factorization.

988407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 988407 is about 994.1866022030. The cubic root of 988407 is about 99.6120636668.

Subtracting from 988407 its product of nonzero digits (16128), we obtain a palindrome (972279).

The spelling of 988407 in words is "nine hundred eighty-eight thousand, four hundred seven".