396696541 has 2 divisors, whose sum is σ = 396696542. Its totient is φ = 396696540.

The previous prime is 396696473. The next prime is 396696551. The reversal of 396696541 is 145696693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394816900 + 1879641 = 19870^2 + 1371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396696541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396696551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198348270 + 198348271.

It is an arithmetic number, because the mean of its divisors is an integer number (198348271).

Almost surely, 2^396696541 is an apocalyptic number.

It is an amenable number.

396696541 is a deficient number, since it is larger than the sum of its proper divisors (1).

396696541 is an equidigital number, since it uses as much as digits as its factorization.

396696541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 49.

The square root of 396696541 is about 19917.2423040942. The cubic root of 396696541 is about 734.7723490137.

The spelling of 396696541 in words is "three hundred ninety-six million, six hundred ninety-six thousand, five hundred forty-one".