767448649 has 16 divisors (see below), whose sum is σ = 858046464. Its totient is φ = 680374800.

The previous prime is 767448623. The next prime is 767448673. The reversal of 767448649 is 946844767.

It is a cyclic number.

It is not a de Polignac number, because 767448649 - 2²³ = 759060041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 767448649.

It is not an unprimeable number, because it can be changed into a prime (767448349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520984 + ... + 522454.

It is an arithmetic number, because the mean of its divisors is an integer number (53627904).

Almost surely, 2^767448649 is an apocalyptic number.

It is an amenable number.

767448649 is a deficient number, since it is larger than the sum of its proper divisors (90597815).

767448649 is a wasteful number, since it uses less digits than its factorization.

767448649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628.

The product of its digits is 8128512, while the sum is 55.

The square root of 767448649 is about 27702.8635523478. The cubic root of 767448649 is about 915.5521959749.

The spelling of 767448649 in words is "seven hundred sixty-seven million, four hundred forty-eight thousand, six hundred forty-nine".