396979 has 8 divisors (see below), whose sum is σ = 437760. Its totient is φ = 357000.

The previous prime is 396971. The next prime is 396983. The reversal of 396979 is 979693.

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

It is a cyclic number.

It is not a de Polignac number, because 396979 - 2³ = 396971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396971) 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, 1542 + ... + 1780.

It is an arithmetic number, because the mean of its divisors is an integer number (54720).

2³⁹⁶⁹⁷⁹ is an apocalyptic number.

396979 is a deficient number, since it is larger than the sum of its proper divisors (40781).

396979 is a wasteful number, since it uses less digits than its factorization.

396979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 91854, while the sum is 43.

The square root of 396979 is about 630.0626952931. The cubic root of 396979 is about 73.4946700440.

The spelling of 396979 in words is "three hundred ninety-six thousand, nine hundred seventy-nine".