1356906799 has 4 divisors (see below), whose sum is σ = 1436724864. Its totient is φ = 1277088736.

The previous prime is 1356906787. The next prime is 1356906823. The reversal of 1356906799 is 9976096531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9976096531 = 47 ⋅212257373.

It is a cyclic number.

It is not a de Polignac number, because 1356906799 - 2⁷ = 1356906671 is a prime.

It is a super-2 number, since 2×1356906799² = 3682392122344852802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356906739) 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, 39909007 + ... + 39909040.

It is an arithmetic number, because the mean of its divisors is an integer number (359181216).

Almost surely, 2^1356906799 is an apocalyptic number.

1356906799 is a deficient number, since it is larger than the sum of its proper divisors (79818065).

1356906799 is an equidigital number, since it uses as much as digits as its factorization.

1356906799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79818064.

The product of its (nonzero) digits is 2755620, while the sum is 55.

The square root of 1356906799 is about 36836.2158615675. The cubic root of 1356906799 is about 1107.0910492041.

The spelling of 1356906799 in words is "one billion, three hundred fifty-six million, nine hundred six thousand, seven hundred ninety-nine".