396546277 has 4 divisors (see below), whose sum is σ = 396589536. Its totient is φ = 396503020.

The previous prime is 396546263. The next prime is 396546331. The reversal of 396546277 is 772645693.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 772645693 = 23 ⋅33593291.

It is a cyclic number.

It is not a de Polignac number, because 396546277 - 2⁷ = 396546149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396546277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396546217) 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, 1849 + ... + 28222.

It is an arithmetic number, because the mean of its divisors is an integer number (99147384).

Almost surely, 2^396546277 is an apocalyptic number.

It is an amenable number.

396546277 is a deficient number, since it is larger than the sum of its proper divisors (43259).

396546277 is a wasteful number, since it uses less digits than its factorization.

396546277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43258.

The product of its digits is 1905120, while the sum is 49.

The square root of 396546277 is about 19913.4697378433. The cubic root of 396546277 is about 734.6795629128.

The spelling of 396546277 in words is "three hundred ninety-six million, five hundred forty-six thousand, two hundred seventy-seven".