396091541 has 4 divisors (see below), whose sum is σ = 409749900. Its totient is φ = 382433184.

The previous prime is 396091519. The next prime is 396091559. The reversal of 396091541 is 145190693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145190693 = 17 ⋅8540629.

It can be written as a sum of positive squares in 2 ways, for example, as 185232100 + 210859441 = 13610^2 + 14521^2 .

It is a cyclic number.

It is not a de Polignac number, because 396091541 - 2⁶ = 396091477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396091495 and 396091504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396091511) 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, 6829136 + ... + 6829193.

It is an arithmetic number, because the mean of its divisors is an integer number (102437475).

Almost surely, 2^396091541 is an apocalyptic number.

It is an amenable number.

396091541 is a deficient number, since it is larger than the sum of its proper divisors (13658359).

396091541 is a wasteful number, since it uses less digits than its factorization.

396091541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13658358.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 396091541 is about 19902.0486633914. The cubic root of 396091541 is about 734.3986263617.

The spelling of 396091541 in words is "three hundred ninety-six million, ninety-one thousand, five hundred forty-one".