763649 has 2 divisors, whose sum is σ = 763650. Its totient is φ = 763648.

The previous prime is 763627. The next prime is 763663. The reversal of 763649 is 946367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 552049 + 211600 = 743^2 + 460^2 .

It is an emirp because it is prime and its reverse (946367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 763649 - 2¹² = 759553 is a prime.

It is a super-3 number, since 3×763649³ = 1335988183336345347, which contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (763619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381824 + 381825.

It is an arithmetic number, because the mean of its divisors is an integer number (381825).

2⁷⁶³⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

763649 is a deficient number, since it is larger than the sum of its proper divisors (1).

763649 is an equidigital number, since it uses as much as digits as its factorization.

763649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 35.

The square root of 763649 is about 873.8701276506. The cubic root of 763649 is about 91.4038724903.

The spelling of 763649 in words is "seven hundred sixty-three thousand, six hundred forty-nine".