5478397 has 2 divisors, whose sum is σ = 5478398. Its totient is φ = 5478396.

The previous prime is 5478383. The next prime is 5478401. The reversal of 5478397 is 7938745.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5410276 + 68121 = 2326^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 5478397 - 2¹¹ = 5476349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5478337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2739198 + 2739199.

It is an arithmetic number, because the mean of its divisors is an integer number (2739199).

Almost surely, 2^5478397 is an apocalyptic number.

It is an amenable number.

5478397 is a deficient number, since it is larger than the sum of its proper divisors (1).

5478397 is an equidigital number, since it uses as much as digits as its factorization.

5478397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 5478397 is about 2340.5975732706. The cubic root of 5478397 is about 176.2860040793.

The spelling of 5478397 in words is "five million, four hundred seventy-eight thousand, three hundred ninety-seven".