939901 has 2 divisors, whose sum is σ = 939902. Its totient is φ = 939900.

The previous prime is 939881. The next prime is 939923. The reversal of 939901 is 109939.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688900 + 251001 = 830^2 + 501^2 .

It is a cyclic number.

It is not a de Polignac number, because 939901 - 2⁷ = 939773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (939931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469950 + 469951.

It is an arithmetic number, because the mean of its divisors is an integer number (469951).

2⁹³⁹⁹⁰¹ is an apocalyptic number.

It is an amenable number.

939901 is a deficient number, since it is larger than the sum of its proper divisors (1).

939901 is an equidigital number, since it uses as much as digits as its factorization.

939901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 939901 is about 969.4849147872. The cubic root of 939901 is about 97.9551717783.

The spelling of 939901 in words is "nine hundred thirty-nine thousand, nine hundred one".