3078397 has 4 divisors (see below), whose sum is σ = 3518176. Its totient is φ = 2638620.

The previous prime is 3078391. The next prime is 3078401. The reversal of 3078397 is 7938703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3078397 - 2¹⁹ = 2554109 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3078391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219879 + ... + 219892.

It is an arithmetic number, because the mean of its divisors is an integer number (879544).

Almost surely, 2^3078397 is an apocalyptic number.

It is an amenable number.

3078397 is a deficient number, since it is larger than the sum of its proper divisors (439779).

3078397 is an equidigital number, since it uses as much as digits as its factorization.

3078397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439778.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3078397 is about 1754.5361210303. The cubic root of 3078397 is about 145.4704812914.

The spelling of 3078397 in words is "three million, seventy-eight thousand, three hundred ninety-seven".