1623429339 has 12 divisors (see below), whose sum is σ = 2517972264. Its totient is φ = 927673824.

The previous prime is 1623429289. The next prime is 1623429347. The reversal of 1623429339 is 9339243261.

It is not a de Polignac number, because 1623429339 - 2¹³ = 1623421147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1623429339.

It is not an unprimeable number, because it can be changed into a prime (1623429349) 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, 5521722 + ... + 5522015.

It is an arithmetic number, because the mean of its divisors is an integer number (209831022).

Almost surely, 2^1623429339 is an apocalyptic number.

1623429339 is a deficient number, since it is larger than the sum of its proper divisors (894542925).

1623429339 is a wasteful number, since it uses less digits than its factorization.

1623429339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11043754 (or 11043747 counting only the distinct ones).

The product of its digits is 209952, while the sum is 42.

The square root of 1623429339 is about 40291.8023796405. The cubic root of 1623429339 is about 1175.2884371716.

The spelling of 1623429339 in words is "one billion, six hundred twenty-three million, four hundred twenty-nine thousand, three hundred thirty-nine".