814284397 has 2 divisors, whose sum is σ = 814284398. Its totient is φ = 814284396.

The previous prime is 814284337. The next prime is 814284403. The reversal of 814284397 is 793482418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 791521956 + 22762441 = 28134^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 814284397 - 2¹¹ = 814282349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814284337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407142198 + 407142199.

It is an arithmetic number, because the mean of its divisors is an integer number (407142199).

Almost surely, 2^814284397 is an apocalyptic number.

It is an amenable number.

814284397 is a deficient number, since it is larger than the sum of its proper divisors (1).

814284397 is an equidigital number, since it uses as much as digits as its factorization.

814284397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 814284397 is about 28535.6688549612. The cubic root of 814284397 is about 933.8103955554.

The spelling of 814284397 in words is "eight hundred fourteen million, two hundred eighty-four thousand, three hundred ninety-seven".