79390 has 16 divisors (see below), whose sum is σ = 151632. Its totient is φ = 29824.

The previous prime is 79379. The next prime is 79393. The reversal of 79390 is 9397.

79390 = 124² + 125² + ... + 128².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79393) 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, 64 + ... + 403.

It is an arithmetic number, because the mean of its divisors is an integer number (9477).

2⁷⁹³⁹⁰ is an apocalyptic number.

79390 is a deficient number, since it is larger than the sum of its proper divisors (72242).

79390 is a wasteful number, since it uses less digits than its factorization.

79390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 79390 is about 281.7623111773. The cubic root of 79390 is about 42.9788971628.

The spelling of 79390 in words is "seventy-nine thousand, three hundred ninety".