1396782099 has 12 divisors (see below), whose sum is σ = 2018029936. Its totient is φ = 930977712.

The previous prime is 1396782091. The next prime is 1396782103. The reversal of 1396782099 is 9902876931.

It is not a de Polignac number, because 1396782099 - 2³ = 1396782091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1396782091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31842 + ... + 61704.

Almost surely, 2^1396782099 is an apocalyptic number.

1396782099 is a deficient number, since it is larger than the sum of its proper divisors (621247837).

1396782099 is a wasteful number, since it uses less digits than its factorization.

1396782099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35066 (or 35063 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 1396782099 is about 37373.5481189571. The cubic root of 1396782099 is about 1117.8311821139.

The spelling of 1396782099 in words is "one billion, three hundred ninety-six million, seven hundred eighty-two thousand, ninety-nine".