16364943 has 16 divisors (see below), whose sum is σ = 27708160. Its totient is φ = 9351288.

The previous prime is 16364941. The next prime is 16364981. The reversal of 16364943 is 34946361.

16364943 is a `hidden beast` number, since 1 + 6 + 3 + 649 + 4 + 3 = 666.

It is not a de Polignac number, because 16364943 - 2¹ = 16364941 is a prime.

It is a super-2 number, since 2×16364943² = 535622718786498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16364898 and 16364907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16364941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43105 + ... + 43482.

It is an arithmetic number, because the mean of its divisors is an integer number (1731760).

Almost surely, 2^16364943 is an apocalyptic number.

16364943 is a deficient number, since it is larger than the sum of its proper divisors (11343217).

16364943 is an equidigital number, since it uses as much as digits as its factorization.

16364943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86603 (or 86597 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 16364943 is about 4045.3606761326. The cubic root of 16364943 is about 253.8856564716.

The spelling of 16364943 in words is "sixteen million, three hundred sixty-four thousand, nine hundred forty-three".