16291379 has 8 divisors (see below), whose sum is σ = 18468240. Its totient is φ = 14246496.

The previous prime is 16291357. The next prime is 16291381. The reversal of 16291379 is 97319261.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16291379 - 2⁸ = 16291123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16291349) 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 7 ways as a sum of consecutive naturals, for example, 32732 + ... + 33225.

It is an arithmetic number, because the mean of its divisors is an integer number (2308530).

Almost surely, 2^16291379 is an apocalyptic number.

16291379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16291379 is a deficient number, since it is larger than the sum of its proper divisors (2176861).

16291379 is a wasteful number, since it uses less digits than its factorization.

16291379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65989.

The product of its digits is 20412, while the sum is 38.

The square root of 16291379 is about 4036.2580442781. The cubic root of 16291379 is about 253.5046611527.

The spelling of 16291379 in words is "sixteen million, two hundred ninety-one thousand, three hundred seventy-nine".