396992485 has 8 divisors (see below), whose sum is σ = 476499096. Its totient is φ = 317521920.

The previous prime is 396992447. The next prime is 396992509. The reversal of 396992485 is 584299693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7403841 + 389588644 = 2721^2 + 19738^2 .

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

It is not a de Polignac number, because 396992485 - 2²³ = 388603877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33237 + ... + 43573.

It is an arithmetic number, because the mean of its divisors is an integer number (59562387).

Almost surely, 2^396992485 is an apocalyptic number.

It is an amenable number.

396992485 is a deficient number, since it is larger than the sum of its proper divisors (79506611).

396992485 is a wasteful number, since it uses less digits than its factorization.

396992485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18023.

The product of its digits is 4199040, while the sum is 55.

The square root of 396992485 is about 19924.6702607596. The cubic root of 396992485 is about 734.9550221601.

The spelling of 396992485 in words is "three hundred ninety-six million, nine hundred ninety-two thousand, four hundred eighty-five".