988928417 has 4 divisors (see below), whose sum is σ = 989050800. Its totient is φ = 988806036.

The previous prime is 988928393. The next prime is 988928419. The reversal of 988928417 is 714829889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 714829889 = 17 ⋅42048817.

It is a cyclic number.

It is not a de Polignac number, because 988928417 - 2¹⁰ = 988927393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988928419) 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 3 ways as a sum of consecutive naturals, for example, 48143 + ... + 65540.

It is an arithmetic number, because the mean of its divisors is an integer number (247262700).

Almost surely, 2^988928417 is an apocalyptic number.

It is an amenable number.

988928417 is a deficient number, since it is larger than the sum of its proper divisors (122383).

988928417 is a wasteful number, since it uses less digits than its factorization.

988928417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122382.

The product of its digits is 2322432, while the sum is 56.

The square root of 988928417 is about 31447.2322629512. The cubic root of 988928417 is about 996.2957679405.

The spelling of 988928417 in words is "nine hundred eighty-eight million, nine hundred twenty-eight thousand, four hundred seventeen".