16377091 has 2 divisors, whose sum is σ = 16377092. Its totient is φ = 16377090.

The previous prime is 16377089. The next prime is 16377121. The reversal of 16377091 is 19077361.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19077361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16377091 - 2¹ = 16377089 is a prime.

Together with 16377089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16377041) 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 as a sum of consecutive naturals, namely, 8188545 + 8188546.

It is an arithmetic number, because the mean of its divisors is an integer number (8188546).

Almost surely, 2^16377091 is an apocalyptic number.

16377091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16377091 is an equidigital number, since it uses as much as digits as its factorization.

16377091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 16377091 is about 4046.8618706351. The cubic root of 16377091 is about 253.9484622738.

It can be divided in two parts, 163770 and 91, that multiplied together give a triangular number (14903070 = T₅₄₅₉).

The spelling of 16377091 in words is "sixteen million, three hundred seventy-seven thousand, ninety-one".