1238407 has 2 divisors, whose sum is σ = 1238408. Its totient is φ = 1238406.

The previous prime is 1238383. The next prime is 1238411. The reversal of 1238407 is 7048321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1238407 - 2¹⁵ = 1205639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1238437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619203 + 619204.

It is an arithmetic number, because the mean of its divisors is an integer number (619204).

2^1238407 is an apocalyptic number.

1238407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238407 is an equidigital number, since it uses as much as digits as its factorization.

1238407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1238407 is about 1112.8373645776. The cubic root of 1238407 is about 107.3876814981.

The spelling of 1238407 in words is "one million, two hundred thirty-eight thousand, four hundred seven".