16425799 has 8 divisors (see below), whose sum is σ = 17830400. Its totient is φ = 15041376.

The previous prime is 16425781. The next prime is 16425833. The reversal of 16425799 is 99752461.

16425799 = 117² + 118² + ... + 370².

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 16425799 - 2¹⁵ = 16393031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16425499) 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, 3324 + ... + 6625.

It is an arithmetic number, because the mean of its divisors is an integer number (2228800).

Almost surely, 2^16425799 is an apocalyptic number.

16425799 is a deficient number, since it is larger than the sum of its proper divisors (1404601).

16425799 is a wasteful number, since it uses less digits than its factorization.

16425799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089.

The product of its digits is 136080, while the sum is 43.

The square root of 16425799 is about 4052.8753990223. The cubic root of 16425799 is about 254.1999737533.

The spelling of 16425799 in words is "sixteen million, four hundred twenty-five thousand, seven hundred ninety-nine".