1167409 has 2 divisors, whose sum is σ = 1167410. Its totient is φ = 1167408.

The previous prime is 1167391. The next prime is 1167421. The reversal of 1167409 is 9047611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1149184 + 18225 = 1072^2 + 135^2 .

It is an emirp because it is prime and its reverse (9047611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1167409 - 2¹¹ = 1165361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1167449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583704 + 583705.

It is an arithmetic number, because the mean of its divisors is an integer number (583705).

2^1167409 is an apocalyptic number.

It is an amenable number.

1167409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1167409 is an equidigital number, since it uses as much as digits as its factorization.

1167409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1167409 is about 1080.4670286501. The cubic root of 1167409 is about 105.2949830569.

The spelling of 1167409 in words is "one million, one hundred sixty-seven thousand, four hundred nine".