1379407 has 4 divisors (see below), whose sum is σ = 1423936. Its totient is φ = 1334880.

The previous prime is 1379387. The next prime is 1379423. The reversal of 1379407 is 7049731.

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 1379407 - 2¹¹ = 1377359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 44497 = 1379407 / (1 + 3 + 7 + 9 + 4 + 0 + 7).

It is a Duffinian number.

1379407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379447) 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, 22218 + ... + 22279.

It is an arithmetic number, because the mean of its divisors is an integer number (355984).

2^1379407 is an apocalyptic number.

1379407 is a deficient number, since it is larger than the sum of its proper divisors (44529).

1379407 is an equidigital number, since it uses as much as digits as its factorization.

1379407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44528.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 1379407 is about 1174.4815877654. The cubic root of 1379407 is about 111.3176788042.

The spelling of 1379407 in words is "one million, three hundred seventy-nine thousand, four hundred seven".