786349680 has 40 divisors (see below), whose sum is σ = 2437684752. Its totient is φ = 209693184.

The previous prime is 786349673. The next prime is 786349687. The reversal of 786349680 is 86943687.

It is an interprime number because it is at equal distance from previous prime (786349673) and next prime (786349687).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×786349680² = 1236691638472204800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (786349687) 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, 1637989 + ... + 1638468.

Almost surely, 2^786349680 is an apocalyptic number.

It is an amenable number.

786349680 is an abundant number, since it is smaller than the sum of its proper divisors (1651335072).

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

786349680 is a wasteful number, since it uses less digits than its factorization.

786349680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276473 (or 3276467 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 786349680 is about 28041.9271805630. The cubic root of 786349680 is about 923.0075173884.

The spelling of 786349680 in words is "seven hundred eighty-six million, three hundred forty-nine thousand, six hundred eighty".