988742 has 8 divisors (see below), whose sum is σ = 1517736. Its totient is φ = 482832.

The previous prime is 988733. The next prime is 988759. The reversal of 988742 is 247889.

988742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×988742² = 1955221485128, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 988696 and 988705.

It is a congruent number.

It is an unprimeable number.

988742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5663 + ... + 5834.

It is an arithmetic number, because the mean of its divisors is an integer number (189717).

2⁹⁸⁸⁷⁴² is an apocalyptic number.

988742 is a deficient number, since it is larger than the sum of its proper divisors (528994).

988742 is a wasteful number, since it uses less digits than its factorization.

988742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11542.

The product of its digits is 32256, while the sum is 38.

The square root of 988742 is about 994.3550673678. The cubic root of 988742 is about 99.6233162081.

The spelling of 988742 in words is "nine hundred eighty-eight thousand, seven hundred forty-two".