1399929 has 8 divisors (see below), whose sum is σ = 1926912. Its totient is φ = 903120.

The previous prime is 1399919. The next prime is 1399943. The reversal of 1399929 is 9299931.

It is a happy number.

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

It is not a de Polignac number, because 1399929 - 2⁴ = 1399913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399919) 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, 7434 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (240864).

2^1399929 is an apocalyptic number.

It is an amenable number.

1399929 is a deficient number, since it is larger than the sum of its proper divisors (526983).

1399929 is a wasteful number, since it uses less digits than its factorization.

1399929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15087.

The product of its digits is 39366, while the sum is 42.

The square root of 1399929 is about 1183.1859532635. The cubic root of 1399929 is about 111.8670030591.

It can be divided in two parts, 13999 and 29, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 1399929 in words is "one million, three hundred ninety-nine thousand, nine hundred twenty-nine".