787707428 has 12 divisors (see below), whose sum is σ = 1381254000. Its totient is φ = 393063432.

The previous prime is 787707421. The next prime is 787707439. The reversal of 787707428 is 824707787.

It is not an unprimeable number, because it can be changed into a prime (787707421) 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 3 ways as a sum of consecutive naturals, for example, 195326 + ... + 199317.

It is an arithmetic number, because the mean of its divisors is an integer number (115104500).

Almost surely, 2^787707428 is an apocalyptic number.

It is an amenable number.

787707428 is a deficient number, since it is larger than the sum of its proper divisors (593546572).

787707428 is a wasteful number, since it uses less digits than its factorization.

787707428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395146 (or 395144 counting only the distinct ones).

The product of its (nonzero) digits is 1229312, while the sum is 50.

The square root of 787707428 is about 28066.1259884580. The cubic root of 787707428 is about 923.5384478591.

The spelling of 787707428 in words is "seven hundred eighty-seven million, seven hundred seven thousand, four hundred twenty-eight".