3478997 has 2 divisors, whose sum is σ = 3478998. Its totient is φ = 3478996.

The previous prime is 3478991. The next prime is 3479017. The reversal of 3478997 is 7998743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1825201 + 1653796 = 1351^2 + 1286^2 .

It is an emirp because it is prime and its reverse (7998743) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3478997 - 2¹⁰ = 3477973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3478991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1739498 + 1739499.

It is an arithmetic number, because the mean of its divisors is an integer number (1739499).

Almost surely, 2^3478997 is an apocalyptic number.

It is an amenable number.

3478997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3478997 is an equidigital number, since it uses as much as digits as its factorization.

3478997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 47.

The square root of 3478997 is about 1865.2069590263. The cubic root of 3478997 is about 151.5251367920.

The spelling of 3478997 in words is "three million, four hundred seventy-eight thousand, nine hundred ninety-seven".