396977 has 4 divisors (see below), whose sum is σ = 453696. Its totient is φ = 340260.

The previous prime is 396971. The next prime is 396983. The reversal of 396977 is 779693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (396971) and next prime (396983).

It is a cyclic number.

It is not a de Polignac number, because 396977 - 2¹⁰ = 395953 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 3 ways as a sum of consecutive naturals, for example, 28349 + ... + 28362.

It is an arithmetic number, because the mean of its divisors is an integer number (113424).

2³⁹⁶⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

396977 is a deficient number, since it is larger than the sum of its proper divisors (56719).

396977 is an equidigital number, since it uses as much as digits as its factorization.

396977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56718.

The product of its digits is 71442, while the sum is 41.

The square root of 396977 is about 630.0611081475. The cubic root of 396977 is about 73.4945466206.

The spelling of 396977 in words is "three hundred ninety-six thousand, nine hundred seventy-seven".