3954397 has 2 divisors, whose sum is σ = 3954398. Its totient is φ = 3954396.

The previous prime is 3954373. The next prime is 3954437. The reversal of 3954397 is 7934593.

It is an a-pointer prime, because the next prime (3954437) can be obtained adding 3954397 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3944196 + 10201 = 1986^2 + 101^2 .

It is an emirp because it is prime and its reverse (7934593) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3954397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3954317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1977198 + 1977199.

It is an arithmetic number, because the mean of its divisors is an integer number (1977199).

Almost surely, 2^3954397 is an apocalyptic number.

It is an amenable number.

3954397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3954397 is an equidigital number, since it uses as much as digits as its factorization.

3954397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 3954397 is about 1988.5665691648. The cubic root of 3954397 is about 158.1345459718.

The spelling of 3954397 in words is "three million, nine hundred fifty-four thousand, three hundred ninety-seven".