938378473 has 2 divisors, whose sum is σ = 938378474. Its totient is φ = 938378472.

The previous prime is 938378459. The next prime is 938378527. The reversal of 938378473 is 374873839.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938319424 + 59049 = 30632^2 + 243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-938378473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 938378473.

It is not a weakly prime, because it can be changed into another prime (938378443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469189236 + 469189237.

It is an arithmetic number, because the mean of its divisors is an integer number (469189237).

Almost surely, 2^938378473 is an apocalyptic number.

It is an amenable number.

938378473 is a deficient number, since it is larger than the sum of its proper divisors (1).

938378473 is an equidigital number, since it uses as much as digits as its factorization.

938378473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 52.

The square root of 938378473 is about 30632.9638298353. The cubic root of 938378473 is about 979.0225131268.

The spelling of 938378473 in words is "nine hundred thirty-eight million, three hundred seventy-eight thousand, four hundred seventy-three".