3954493 has 2 divisors, whose sum is σ = 3954494. Its totient is φ = 3954492.

The previous prime is 3954481. The next prime is 3954499. The reversal of 3954493 is 3944593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3853369 + 101124 = 1963^2 + 318^2 .

It is an emirp because it is prime and its reverse (3944593) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3954493 is a prime.

3954493 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3954499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1977246 + 1977247.

It is an arithmetic number, because the mean of its divisors is an integer number (1977247).

Almost surely, 2^3954493 is an apocalyptic number.

It is an amenable number.

3954493 is a deficient number, since it is larger than the sum of its proper divisors (1).

3954493 is an equidigital number, since it uses as much as digits as its factorization.

3954493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The square root of 3954493 is about 1988.5907070084. The cubic root of 3954493 is about 158.1358256270.

The spelling of 3954493 in words is "three million, nine hundred fifty-four thousand, four hundred ninety-three".