988970078 has 4 divisors (see below), whose sum is σ = 1483455120. Its totient is φ = 494485038.

The previous prime is 988970069. The next prime is 988970119. The reversal of 988970078 is 870079889.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247242518 + ... + 247242521.

It is an arithmetic number, because the mean of its divisors is an integer number (370863780).

Almost surely, 2^988970078 is an apocalyptic number.

988970078 is a deficient number, since it is larger than the sum of its proper divisors (494485042).

988970078 is a wasteful number, since it uses less digits than its factorization.

988970078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494485041.

The product of its (nonzero) digits is 2032128, while the sum is 56.

The square root of 988970078 is about 31447.8946513117. The cubic root of 988970078 is about 996.3097581999.

The spelling of 988970078 in words is "nine hundred eighty-eight million, nine hundred seventy thousand, seventy-eight".