746606647 has 2 divisors, whose sum is σ = 746606648. Its totient is φ = 746606646.

The previous prime is 746606621. The next prime is 746606681.

746606647 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-746606647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 746606597 and 746606606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (746606747) 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 as a sum of consecutive naturals, namely, 373303323 + 373303324.

It is an arithmetic number, because the mean of its divisors is an integer number (373303324).

Almost surely, 2^746606647 is an apocalyptic number.

746606647 is a deficient number, since it is larger than the sum of its proper divisors (1).

746606647 is an equidigital number, since it uses as much as digits as its factorization.

746606647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The square root of 746606647 is about 27324.1037730426. The cubic root of 746606647 is about 907.1879731817.

It can be divided in two parts, 746606 and 647, that added together give a triangular number (747253 = T₁₂₂₂).

The spelling of 746606647 in words is "seven hundred forty-six million, six hundred six thousand, six hundred forty-seven".