780348 has 12 divisors (see below), whose sum is σ = 1820840. Its totient is φ = 260112.

The previous prime is 780347. The next prime is 780371. The reversal of 780348 is 843087.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×780348² = 1217886002208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32503 + ... + 32526.

2⁷⁸⁰³⁴⁸ is an apocalyptic number.

It is an amenable number.

780348 is an abundant number, since it is smaller than the sum of its proper divisors (1040492).

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

780348 is a wasteful number, since it uses less digits than its factorization.

780348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65036 (or 65034 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 780348 is about 883.3730808667. The cubic root of 780348 is about 92.0653285210.

It can be divided in two parts, 7803 and 48, that multiplied together give a square (374544 = 612²).

The spelling of 780348 in words is "seven hundred eighty thousand, three hundred forty-eight".