988172039 has 8 divisors (see below), whose sum is σ = 1068562368. Its totient is φ = 910255360.

The previous prime is 988172033. The next prime is 988172057. The reversal of 988172039 is 930271889.

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

It is a cyclic number.

It is not a de Polignac number, because 988172039 - 2⁸ = 988171783 is a prime.

It is a super-2 number, since 2×988172039² = 1952967957322835042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 988171984 and 988172002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988172033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617582 + ... + 619179.

It is an arithmetic number, because the mean of its divisors is an integer number (133570296).

Almost surely, 2^988172039 is an apocalyptic number.

988172039 is a deficient number, since it is larger than the sum of its proper divisors (80390329).

988172039 is a wasteful number, since it uses less digits than its factorization.

988172039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236825.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 988172039 is about 31435.2038167402. The cubic root of 988172039 is about 996.0416988585.

The spelling of 988172039 in words is "nine hundred eighty-eight million, one hundred seventy-two thousand, thirty-nine".