998977652 has 48 divisors (see below), whose sum is σ = 1831410000. Its totient is φ = 476365824.

The previous prime is 998977643. The next prime is 998977657. The reversal of 998977652 is 256779899.

998977652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 164836 + 998812816 = 406^2 + 31604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998977657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1962374 + ... + 1962882.

It is an arithmetic number, because the mean of its divisors is an integer number (38154375).

Almost surely, 2^998977652 is an apocalyptic number.

It is an amenable number.

998977652 is a deficient number, since it is larger than the sum of its proper divisors (832432348).

998977652 is a wasteful number, since it uses less digits than its factorization.

998977652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 786 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 62.

The square root of 998977652 is about 31606.6077268662. The cubic root of 998977652 is about 999.6591011345.

The spelling of 998977652 in words is "nine hundred ninety-eight million, nine hundred seventy-seven thousand, six hundred fifty-two".