3938923 has 2 divisors, whose sum is σ = 3938924. Its totient is φ = 3938922.

The previous prime is 3938903. The next prime is 3938927. The reversal of 3938923 is 3298393.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3938923 - 2¹⁷ = 3807851 is a prime.

It is a super-3 number, since 3×3938923³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a d-powerful number, because it can be written as 3¹¹ + 9³ + 3¹³ + 8⁵ + 9⁶ + 2¹³ + 3¹³ .

It is not a weakly prime, because it can be changed into another prime (3938927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969461 + 1969462.

It is an arithmetic number, because the mean of its divisors is an integer number (1969462).

Almost surely, 2^3938923 is an apocalyptic number.

3938923 is a deficient number, since it is larger than the sum of its proper divisors (1).

3938923 is an equidigital number, since it uses as much as digits as its factorization.

3938923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 37.

The square root of 3938923 is about 1984.6720132052. The cubic root of 3938923 is about 157.9280102529.

It can be divided in two parts, 393 and 8923, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 3938923 in words is "three million, nine hundred thirty-eight thousand, nine hundred twenty-three".