988078 has 32 divisors (see below), whose sum is σ = 1874880. Its totient is φ = 380160.

The previous prime is 988069. The next prime is 988093. The reversal of 988078 is 870889.

It is a self number, because there is not a number n which added to its sum of digits gives 988078.

It is a congruent number.

It is an unprimeable number.

988078 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 15 ways as a sum of consecutive naturals, for example, 11058 + ... + 11146.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

2⁹⁸⁸⁰⁷⁸ is an apocalyptic number.

988078 is a deficient number, since it is larger than the sum of its proper divisors (886802).

988078 is a wasteful number, since it uses less digits than its factorization.

988078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 988078 is about 994.0211265361. The cubic root of 988078 is about 99.6010101885.

The spelling of 988078 in words is "nine hundred eighty-eight thousand, seventy-eight".