988633479 has 8 divisors (see below), whose sum is σ = 1387555840. Its totient is φ = 624400056.

The previous prime is 988633447. The next prime is 988633483. The reversal of 988633479 is 974336889.

It is a happy number.

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

It is not a de Polignac number, because 988633479 - 2⁵ = 988633447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 17344447 = 988633479 / (9 + 8 + 8 + 6 + 3 + 3 + 4 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988633489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8672167 + ... + 8672280.

It is an arithmetic number, because the mean of its divisors is an integer number (173444480).

Almost surely, 2^988633479 is an apocalyptic number.

988633479 is a deficient number, since it is larger than the sum of its proper divisors (398922361).

988633479 is a wasteful number, since it uses less digits than its factorization.

988633479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17344469.

The product of its digits is 7838208, while the sum is 57.

The square root of 988633479 is about 31442.5425021578. The cubic root of 988633479 is about 996.1967130129.

It can be divided in two parts, 9886 and 33479, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 988633479 in words is "nine hundred eighty-eight million, six hundred thirty-three thousand, four hundred seventy-nine".