1383407 has 4 divisors (see below), whose sum is σ = 1387680. Its totient is φ = 1379136.

The previous prime is 1383401. The next prime is 1383433. The reversal of 1383407 is 7043831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1383407 - 2⁴ = 1383391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607 + ... + 2312.

It is an arithmetic number, because the mean of its divisors is an integer number (346920).

2^1383407 is an apocalyptic number.

1383407 is a deficient number, since it is larger than the sum of its proper divisors (4273).

1383407 is an equidigital number, since it uses as much as digits as its factorization.

1383407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1383407 is about 1176.1832340244. The cubic root of 1383407 is about 111.4251745153.

The spelling of 1383407 in words is "one million, three hundred eighty-three thousand, four hundred seven".