1399463 has 8 divisors (see below), whose sum is σ = 1526448. Its totient is φ = 1275264.

The previous prime is 1399441. The next prime is 1399469. The reversal of 1399463 is 3649931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1399463 - 2⁶ = 1399399 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 (1399469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431 + ... + 1727.

It is an arithmetic number, because the mean of its divisors is an integer number (190806).

2^1399463 is an apocalyptic number.

1399463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1399463 is a deficient number, since it is larger than the sum of its proper divisors (126985).

1399463 is a wasteful number, since it uses less digits than its factorization.

1399463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

The product of its digits is 17496, while the sum is 35.

The square root of 1399463 is about 1182.9890109380. The cubic root of 1399463 is about 111.8545891418.

The spelling of 1399463 in words is "one million, three hundred ninety-nine thousand, four hundred sixty-three".