3947023 has 2 divisors, whose sum is σ = 3947024. Its totient is φ = 3947022.

The previous prime is 3947017. The next prime is 3947051. The reversal of 3947023 is 3207493.

It is an a-pointer prime, because the next prime (3947051) can be obtained adding 3947023 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3947023 - 2⁵ = 3946991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3946982 and 3947000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3947623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1973511 + 1973512.

It is an arithmetic number, because the mean of its divisors is an integer number (1973512).

Almost surely, 2^3947023 is an apocalyptic number.

3947023 is a deficient number, since it is larger than the sum of its proper divisors (1).

3947023 is an equidigital number, since it uses as much as digits as its factorization.

3947023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 3947023 is about 1986.7116046372. The cubic root of 3947023 is about 158.0361905027.

It can be divided in two parts, 39470 and 23, that added together give a palindrome (39493).

The spelling of 3947023 in words is "three million, nine hundred forty-seven thousand, twenty-three".