16379987 has 12 divisors (see below), whose sum is σ = 17928144. Its totient is φ = 14957280.

The previous prime is 16379963. The next prime is 16379989. The reversal of 16379987 is 78997361.

It is not a de Polignac number, because 16379987 - 2⁸ = 16379731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16379989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16937 + ... + 17877.

It is an arithmetic number, because the mean of its divisors is an integer number (1494012).

Almost surely, 2^16379987 is an apocalyptic number.

16379987 is a deficient number, since it is larger than the sum of its proper divisors (1548157).

16379987 is a wasteful number, since it uses less digits than its factorization.

16379987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1057 counting only the distinct ones).

The product of its digits is 571536, while the sum is 50.

The square root of 16379987 is about 4047.2196629291. The cubic root of 16379987 is about 253.9634301620.

The spelling of 16379987 in words is "sixteen million, three hundred seventy-nine thousand, nine hundred eighty-seven".