16007961 has 16 divisors (see below), whose sum is σ = 22026816. Its totient is φ = 10335936.

The previous prime is 16007947. The next prime is 16007983. The reversal of 16007961 is 16970061.

It is not a de Polignac number, because 16007961 - 2⁷ = 16007833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16007561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12591 + ... + 13803.

It is an arithmetic number, because the mean of its divisors is an integer number (1376676).

Almost surely, 2^16007961 is an apocalyptic number.

It is an amenable number.

16007961 is a deficient number, since it is larger than the sum of its proper divisors (6018855).

16007961 is a wasteful number, since it uses less digits than its factorization.

16007961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 16007961 is about 4000.9950012466. The cubic root of 16007961 is about 252.0259956806.

The spelling of 16007961 in words is "sixteen million, seven thousand, nine hundred sixty-one".