16404377 has 8 divisors (see below), whose sum is σ = 17926272. Its totient is φ = 14887600.

The previous prime is 16404373. The next prime is 16404389. The reversal of 16404377 is 77340461.

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 16404377 - 2² = 16404373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16404373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9203 + ... + 10839.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^16404377 is an apocalyptic number.

It is an amenable number.

16404377 is a deficient number, since it is larger than the sum of its proper divisors (1521895).

16404377 is a wasteful number, since it uses less digits than its factorization.

16404377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 16404377 is about 4050.2317217661. The cubic root of 16404377 is about 254.0894191957.

The spelling of 16404377 in words is "sixteen million, four hundred four thousand, three hundred seventy-seven".