1322999879 has 2 divisors, whose sum is σ = 1322999880. Its totient is φ = 1322999878.

The previous prime is 1322999827. The next prime is 1322999933. The reversal of 1322999879 is 9789992231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1322999879 - 2²⁴ = 1306222663 is a prime.

It is a super-3 number, since 3×1322999879³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322999809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661499939 + 661499940.

It is an arithmetic number, because the mean of its divisors is an integer number (661499940).

Almost surely, 2^1322999879 is an apocalyptic number.

1322999879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322999879 is an equidigital number, since it uses as much as digits as its factorization.

1322999879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 59.

The square root of 1322999879 is about 36373.0652956278. The cubic root of 1322999879 is about 1097.7916795393.

The spelling of 1322999879 in words is "one billion, three hundred twenty-two million, nine hundred ninety-nine thousand, eight hundred seventy-nine".