1399056207 has 8 divisors (see below), whose sum is σ = 1891681920. Its totient is φ = 919567320.

The previous prime is 1399056181. The next prime is 1399056209. The reversal of 1399056207 is 7026509931.

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

It is not a de Polignac number, because 1399056207 - 2⁶ = 1399056143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399056209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3283957 + ... + 3284382.

It is an arithmetic number, because the mean of its divisors is an integer number (236460240).

Almost surely, 2^1399056207 is an apocalyptic number.

1399056207 is a deficient number, since it is larger than the sum of its proper divisors (492625713).

1399056207 is an equidigital number, since it uses as much as digits as its factorization.

1399056207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568413.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 1399056207 is about 37403.9597770076. The cubic root of 1399056207 is about 1118.4375020491.

The spelling of 1399056207 in words is "one billion, three hundred ninety-nine million, fifty-six thousand, two hundred seven".