396748779 has 8 divisors (see below), whose sum is σ = 604569600. Its totient is φ = 226713576.

The previous prime is 396748777. The next prime is 396748783. The reversal of 396748779 is 977847693.

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

It is not a de Polignac number, because 396748779 - 2¹ = 396748777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396748777) 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, 9446379 + ... + 9446420.

It is an arithmetic number, because the mean of its divisors is an integer number (75571200).

Almost surely, 2^396748779 is an apocalyptic number.

396748779 is a deficient number, since it is larger than the sum of its proper divisors (207820821).

396748779 is a wasteful number, since it uses less digits than its factorization.

396748779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18892809.

The product of its digits is 16003008, while the sum is 60.

The square root of 396748779 is about 19918.5536372499. The cubic root of 396748779 is about 734.8045998228.

The spelling of 396748779 in words is "three hundred ninety-six million, seven hundred forty-eight thousand, seven hundred seventy-nine".