988693 has 2 divisors, whose sum is σ = 988694. Its totient is φ = 988692.

The previous prime is 988681. The next prime is 988711. The reversal of 988693 is 396889.

988693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 677329 + 311364 = 823^2 + 558^2 .

It is a cyclic number.

It is not a de Polignac number, because 988693 - 2⁵ = 988661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494346 + 494347.

It is an arithmetic number, because the mean of its divisors is an integer number (494347).

2⁹⁸⁸⁶⁹³ is an apocalyptic number.

It is an amenable number.

988693 is a deficient number, since it is larger than the sum of its proper divisors (1).

988693 is an equidigital number, since it uses as much as digits as its factorization.

988693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 43.

The square root of 988693 is about 994.3304279765. The cubic root of 988693 is about 99.6216704727.

It can be divided in two parts, 988 and 693, that added together give a square (1681 = 41²).

The spelling of 988693 in words is "nine hundred eighty-eight thousand, six hundred ninety-three".