38356961 has 2 divisors, whose sum is σ = 38356962. Its totient is φ = 38356960.

The previous prime is 38356957. The next prime is 38356963. The reversal of 38356961 is 16965383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20976400 + 17380561 = 4580^2 + 4169^2 .

It is an emirp because it is prime and its reverse (16965383) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38356961 - 2² = 38356957 is a prime.

Together with 38356963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38356963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19178480 + 19178481.

It is an arithmetic number, because the mean of its divisors is an integer number (19178481).

Almost surely, 2^38356961 is an apocalyptic number.

It is an amenable number.

38356961 is a deficient number, since it is larger than the sum of its proper divisors (1).

38356961 is an equidigital number, since it uses as much as digits as its factorization.

38356961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 38356961 is about 6193.2996859509. The cubic root of 38356961 is about 337.2469756037.

The spelling of 38356961 in words is "thirty-eight million, three hundred fifty-six thousand, nine hundred sixty-one".