786662016 has 256 divisors, whose sum is σ = 2560281600. Its totient is φ = 209018880.

The previous prime is 786661999. The next prime is 786662027. The reversal of 786662016 is 610266687.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3728151 + ... + 3728361.

It is an arithmetic number, because the mean of its divisors is an integer number (10001100).

Almost surely, 2^786662016 is an apocalyptic number.

786662016 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 786662016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1280140800).

786662016 is an abundant number, since it is smaller than the sum of its proper divisors (1773619584).

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

786662016 is a wasteful number, since it uses less digits than its factorization.

786662016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 786662016 is about 28047.4957170868. The cubic root of 786662016 is about 923.1297065885.

The spelling of 786662016 in words is "seven hundred eighty-six million, six hundred sixty-two thousand, sixteen".