787469649 has 8 divisors (see below), whose sum is σ = 1105220640. Its totient is φ = 497349216.

The previous prime is 787469609. The next prime is 787469663. The reversal of 787469649 is 946964787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 787469649 - 2¹⁹ = 786945361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 787469592 and 787469601.

It is not an unprimeable number, because it can be changed into a prime (787469609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6907572 + ... + 6907685.

It is an arithmetic number, because the mean of its divisors is an integer number (138152580).

Almost surely, 2^787469649 is an apocalyptic number.

It is an amenable number.

787469649 is a deficient number, since it is larger than the sum of its proper divisors (317750991).

787469649 is a wasteful number, since it uses less digits than its factorization.

787469649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13815279.

The product of its digits is 18289152, while the sum is 60.

The square root of 787469649 is about 28061.8896191971. The cubic root of 787469649 is about 923.4455114293.

The spelling of 787469649 in words is "seven hundred eighty-seven million, four hundred sixty-nine thousand, six hundred forty-nine".