4011923 has 2 divisors, whose sum is σ = 4011924. Its totient is φ = 4011922.

The previous prime is 4011911. The next prime is 4011929. The reversal of 4011923 is 3291104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4011923 - 2⁶ = 4011859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4011895 and 4011904.

It is not a weakly prime, because it can be changed into another prime (4011929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2005961 + 2005962.

It is an arithmetic number, because the mean of its divisors is an integer number (2005962).

Almost surely, 2^4011923 is an apocalyptic number.

4011923 is a deficient number, since it is larger than the sum of its proper divisors (1).

4011923 is an equidigital number, since it uses as much as digits as its factorization.

4011923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 4011923 is about 2002.9785320867. The cubic root of 4011923 is about 158.8976702692.

It can be divided in two parts, 401192 and 3, that multiplied together give a triangular number (1203576 = T₁₅₅₁).

The spelling of 4011923 in words is "four million, eleven thousand, nine hundred twenty-three".