787278204 has 72 divisors (see below), whose sum is σ = 2070851328. Its totient is φ = 261526320.

The previous prime is 787278203. The next prime is 787278221. The reversal of 787278204 is 402872787.

It is a self number, because there is not a number n which added to its sum of digits gives 787278204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787278203) 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 23 ways as a sum of consecutive naturals, for example, 320509 + ... + 322955.

It is an arithmetic number, because the mean of its divisors is an integer number (28761824).

Almost surely, 2^787278204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 787278204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1035425664).

787278204 is an abundant number, since it is smaller than the sum of its proper divisors (1283573124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

787278204 is a wasteful number, since it uses less digits than its factorization.

787278204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 787278204 is about 28058.4782908838. The cubic root of 787278204 is about 923.3706711461.

The spelling of 787278204 in words is "seven hundred eighty-seven million, two hundred seventy-eight thousand, two hundred four".