1356484397 has 2 divisors, whose sum is σ = 1356484398. Its totient is φ = 1356484396.

The previous prime is 1356484369. The next prime is 1356484403. The reversal of 1356484397 is 7934846531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1337657476 + 18826921 = 36574^2 + 4339^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356484397 - 2¹⁴ = 1356468013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356484307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678242198 + 678242199.

It is an arithmetic number, because the mean of its divisors is an integer number (678242199).

Almost surely, 2^1356484397 is an apocalyptic number.

It is an amenable number.

1356484397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356484397 is an equidigital number, since it uses as much as digits as its factorization.

1356484397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The square root of 1356484397 is about 36830.4819001870. The cubic root of 1356484397 is about 1106.9761589731.

The spelling of 1356484397 in words is "one billion, three hundred fifty-six million, four hundred eighty-four thousand, three hundred ninety-seven".