396390751 has 8 divisors (see below), whose sum is σ = 421593984. Its totient is φ = 371397120.

The previous prime is 396390739. The next prime is 396390773. The reversal of 396390751 is 157093693.

It is a happy number.

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 396390751 - 2⁷ = 396390623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396390698 and 396390707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396390451) 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, 48490 + ... + 56071.

It is an arithmetic number, because the mean of its divisors is an integer number (52699248).

Almost surely, 2^396390751 is an apocalyptic number.

396390751 is a deficient number, since it is larger than the sum of its proper divisors (25203233).

396390751 is a wasteful number, since it uses less digits than its factorization.

396390751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104801.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 396390751 is about 19909.5643096478. The cubic root of 396390751 is about 734.5835029054.

The spelling of 396390751 in words is "three hundred ninety-six million, three hundred ninety thousand, seven hundred fifty-one".