988621353 has 12 divisors (see below), whose sum is σ = 1428554868. Its totient is φ = 658828800.

The previous prime is 988621273. The next prime is 988621363. The reversal of 988621353 is 353126889.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 304432704 + 684188649 = 17448^2 + 26157^2 .

It is not a de Polignac number, because 988621353 - 2¹⁶ = 988555817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 988621299 and 988621308.

It is not an unprimeable number, because it can be changed into a prime (988621363) 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, 5601 + ... + 44817.

It is an arithmetic number, because the mean of its divisors is an integer number (119046239).

Almost surely, 2^988621353 is an apocalyptic number.

It is an amenable number.

988621353 is a deficient number, since it is larger than the sum of its proper divisors (439933515).

988621353 is a wasteful number, since it uses less digits than its factorization.

988621353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42024 (or 42021 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 988621353 is about 31442.3496736488. The cubic root of 988621353 is about 996.1926400742.

The spelling of 988621353 in words is "nine hundred eighty-eight million, six hundred twenty-one thousand, three hundred fifty-three".