16740623 has 2 divisors, whose sum is σ = 16740624. Its totient is φ = 16740622.

The previous prime is 16740599. The next prime is 16740641. The reversal of 16740623 is 32604761.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16740623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16740673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8370311 + 8370312.

It is an arithmetic number, because the mean of its divisors is an integer number (8370312).

Almost surely, 2^16740623 is an apocalyptic number.

16740623 is a deficient number, since it is larger than the sum of its proper divisors (1).

16740623 is an equidigital number, since it uses as much as digits as its factorization.

16740623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 16740623 is about 4091.5306426813. The cubic root of 16740623 is about 255.8137428957.

The spelling of 16740623 in words is "sixteen million, seven hundred forty thousand, six hundred twenty-three".