1403407 has 2 divisors, whose sum is σ = 1403408. Its totient is φ = 1403406.

The previous prime is 1403399. The next prime is 1403411. The reversal of 1403407 is 7043041.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7043041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1403407 - 2³ = 1403399 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1403417) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701703 + 701704.

It is an arithmetic number, because the mean of its divisors is an integer number (701704).

2^1403407 is an apocalyptic number.

1403407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403407 is an equidigital number, since it uses as much as digits as its factorization.

1403407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1403407 is about 1184.6548020415. The cubic root of 1403407 is about 111.9595676760.

Adding to 1403407 its reverse (7043041), we get a palindrome (8446448).

The spelling of 1403407 in words is "one million, four hundred three thousand, four hundred seven".