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790 = 2579

790 has 8 divisors (see below), whose sum is σ = 1440. Its totient is φ = 312.

The previous prime is 787. The next prime is 797. The reversal of 790 is 97.

It is a happy number.

790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a magnanimous number.

It is a plaindrome in base 12, base 13 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30 + ... + 49.

It is an arithmetic number, because the mean of its divisors is an integer number (180).

790 is a deficient number, since it is larger than the sum of its proper divisors (650).

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

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

The sum of its prime factors is 86.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 790 is about 28.1069386451. The cubic root of 790 is about 9.2443354654.

Subtracting from 790 its product of nonzero digits (63), we obtain a palindrome (727).

Multiplying 790 by its product of nonzero digits (63), we get a triangular number (49770 = T315).

It can be divided in two parts, 7 and 90, that multiplied together give a triangular number (630 = T35).

The spelling of 790 in words is "seven hundred ninety", and thus it is an aban number and an oban number.

Divisors: 1 2 5 10 79 158 395 790