988544421 has 12 divisors (see below), whose sum is σ = 1428410880. Its totient is φ = 658792680.

The previous prime is 988544419. The next prime is 988544423. The reversal of 988544421 is 124445889.

988544421 is a `hidden beast` number, since 9 + 88 + 544 + 4 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (988544419) and next prime (988544423).

It is not a de Polignac number, because 988544421 - 2¹ = 988544419 is a prime.

It is a Curzon number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988544423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8860 + ... + 45338.

It is an arithmetic number, because the mean of its divisors is an integer number (119034240).

Almost surely, 2^988544421 is an apocalyptic number.

It is an amenable number.

988544421 is a deficient number, since it is larger than the sum of its proper divisors (439866459).

988544421 is a wasteful number, since it uses less digits than its factorization.

988544421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39496 (or 39493 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 988544421 is about 31441.1262679949. The cubic root of 988544421 is about 996.1667990111.

The spelling of 988544421 in words is "nine hundred eighty-eight million, five hundred forty-four thousand, four hundred twenty-one".