988621273 has 2 divisors, whose sum is σ = 988621274. Its totient is φ = 988621272.

The previous prime is 988621189. The next prime is 988621363. The reversal of 988621273 is 372126889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929823049 + 58798224 = 30493^2 + 7668^2 .

It is a cyclic number.

It is not a de Polignac number, because 988621273 - 2⁹ = 988620761 is a prime.

It is not a weakly prime, because it can be changed into another prime (988621573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494310636 + 494310637.

It is an arithmetic number, because the mean of its divisors is an integer number (494310637).

Almost surely, 2^988621273 is an apocalyptic number.

It is an amenable number.

988621273 is a deficient number, since it is larger than the sum of its proper divisors (1).

988621273 is an equidigital number, since it uses as much as digits as its factorization.

988621273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 988621273 is about 31442.3484014792. The cubic root of 988621273 is about 996.1926132033.

The spelling of 988621273 in words is "nine hundred eighty-eight million, six hundred twenty-one thousand, two hundred seventy-three".