1399333007 has 4 divisors (see below), whose sum is σ = 1437152856. Its totient is φ = 1361513160.

The previous prime is 1399333003. The next prime is 1399333049. The reversal of 1399333007 is 7003339931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7003339931 = 7 ⋅1000477133.

It is a cyclic number.

It is not a de Polignac number, because 1399333007 - 2² = 1399333003 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 (1399333003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18909869 + ... + 18909942.

It is an arithmetic number, because the mean of its divisors is an integer number (359288214).

Almost surely, 2^1399333007 is an apocalyptic number.

1399333007 is a deficient number, since it is larger than the sum of its proper divisors (37819849).

1399333007 is an equidigital number, since it uses as much as digits as its factorization.

1399333007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37819848.

The product of its (nonzero) digits is 45927, while the sum is 38.

The square root of 1399333007 is about 37407.6597370111. The cubic root of 1399333007 is about 1118.5112572670.

The spelling of 1399333007 in words is "one billion, three hundred ninety-nine million, three hundred thirty-three thousand, seven".