989874101 has 2 divisors, whose sum is σ = 989874102. Its totient is φ = 989874100.

The previous prime is 989874071. The next prime is 989874131. The reversal of 989874101 is 101478989.

It is a balanced prime because it is at equal distance from previous prime (989874071) and next prime (989874131).

It can be written as a sum of positive squares in only one way, i.e., 613552900 + 376321201 = 24770^2 + 19399^2 .

It is a cyclic number.

It is not a de Polignac number, because 989874101 - 2⁶ = 989874037 is a prime.

It is a super-3 number, since 3×989874101³ (a number of 28 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989874131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494937050 + 494937051.

It is an arithmetic number, because the mean of its divisors is an integer number (494937051).

Almost surely, 2^989874101 is an apocalyptic number.

It is an amenable number.

989874101 is a deficient number, since it is larger than the sum of its proper divisors (1).

989874101 is an equidigital number, since it uses as much as digits as its factorization.

989874101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 989874101 is about 31462.2647150519. The cubic root of 989874101 is about 996.6132431603.

The spelling of 989874101 in words is "nine hundred eighty-nine million, eight hundred seventy-four thousand, one hundred one".