988647345 has 24 divisors (see below), whose sum is σ = 1958463936. Its totient is φ = 451952928.

The previous prime is 988647343. The next prime is 988647347. The reversal of 988647345 is 543746889.

988647345 is a `hidden beast` number, since 98 + 86 + 473 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (988647343) and next prime (988647347).

It is not a de Polignac number, because 988647345 - 2¹ = 988647343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 988647291 and 988647300.

It is not an unprimeable number, because it can be changed into a prime (988647343) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 1568967 + ... + 1569596.

It is an arithmetic number, because the mean of its divisors is an integer number (81602664).

Almost surely, 2^988647345 is an apocalyptic number.

It is an amenable number.

988647345 is a deficient number, since it is larger than the sum of its proper divisors (969816591).

988647345 is a wasteful number, since it uses less digits than its factorization.

988647345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138581 (or 3138578 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 988647345 is about 31442.7629988206. The cubic root of 988647345 is about 996.2013703503.

The spelling of 988647345 in words is "nine hundred eighty-eight million, six hundred forty-seven thousand, three hundred forty-five".