787678252 has 24 divisors (see below), whose sum is σ = 1392752592. Its totient is φ = 389760000.

The previous prime is 787678211. The next prime is 787678259. The reversal of 787678252 is 252876787.

It is a self number, because there is not a number n which added to its sum of digits gives 787678252.

It is not an unprimeable number, because it can be changed into a prime (787678259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542127 + ... + 543577.

It is an arithmetic number, because the mean of its divisors is an integer number (58031358).

Almost surely, 2^787678252 is an apocalyptic number.

It is an amenable number.

787678252 is a deficient number, since it is larger than the sum of its proper divisors (605074340).

787678252 is a wasteful number, since it uses less digits than its factorization.

787678252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2767 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 52.

The square root of 787678252 is about 28065.6062111617. The cubic root of 787678252 is about 923.5270453640.

The spelling of 787678252 in words is "seven hundred eighty-seven million, six hundred seventy-eight thousand, two hundred fifty-two".