16764949 has 2 divisors, whose sum is σ = 16764950. Its totient is φ = 16764948.

The previous prime is 16764901. The next prime is 16764967. The reversal of 16764949 is 94946761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15800625 + 964324 = 3975^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 16764949 - 2¹³ = 16756757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16764899 and 16764908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16764049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8382474 + 8382475.

It is an arithmetic number, because the mean of its divisors is an integer number (8382475).

Almost surely, 2^16764949 is an apocalyptic number.

It is an amenable number.

16764949 is a deficient number, since it is larger than the sum of its proper divisors (1).

16764949 is an equidigital number, since it uses as much as digits as its factorization.

16764949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 16764949 is about 4094.5022896562. The cubic root of 16764949 is about 255.9375915987.

The spelling of 16764949 in words is "sixteen million, seven hundred sixty-four thousand, nine hundred forty-nine".