938038961 has 2 divisors, whose sum is σ = 938038962. Its totient is φ = 938038960.

The previous prime is 938038919. The next prime is 938038967. The reversal of 938038961 is 169830839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 832668736 + 105370225 = 28856^2 + 10265^2 .

It is a cyclic number.

It is not a de Polignac number, because 938038961 - 2⁶ = 938038897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (938038967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469019480 + 469019481.

It is an arithmetic number, because the mean of its divisors is an integer number (469019481).

Almost surely, 2^938038961 is an apocalyptic number.

It is an amenable number.

938038961 is a deficient number, since it is larger than the sum of its proper divisors (1).

938038961 is an equidigital number, since it uses as much as digits as its factorization.

938038961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 938038961 is about 30627.4217164945. The cubic root of 938038961 is about 978.9044264500.

The spelling of 938038961 in words is "nine hundred thirty-eight million, thirty-eight thousand, nine hundred sixty-one".