1369728847 has 2 divisors, whose sum is σ = 1369728848. Its totient is φ = 1369728846.

The previous prime is 1369728799. The next prime is 1369728851. The reversal of 1369728847 is 7488279631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1369728847 - 2¹⁵ = 1369696079 is a prime.

It is a super-2 number, since 2×1369728847² = 3752314228607898818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1369728887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684864423 + 684864424.

It is an arithmetic number, because the mean of its divisors is an integer number (684864424).

Almost surely, 2^1369728847 is an apocalyptic number.

1369728847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1369728847 is an equidigital number, since it uses as much as digits as its factorization.

1369728847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 55.

The square root of 1369728847 is about 37009.8479732084. The cubic root of 1369728847 is about 1110.5672632808.

The spelling of 1369728847 in words is "one billion, three hundred sixty-nine million, seven hundred twenty-eight thousand, eight hundred forty-seven".