56841397 has 2 divisors, whose sum is σ = 56841398. Its totient is φ = 56841396.

The previous prime is 56841347. The next prime is 56841427. The reversal of 56841397 is 79314865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38514436 + 18326961 = 6206^2 + 4281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56841397 is a prime.

It is a super-3 number, since 3×56841397³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56841307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28420698 + 28420699.

It is an arithmetic number, because the mean of its divisors is an integer number (28420699).

Almost surely, 2^56841397 is an apocalyptic number.

It is an amenable number.

56841397 is a deficient number, since it is larger than the sum of its proper divisors (1).

56841397 is an equidigital number, since it uses as much as digits as its factorization.

56841397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 56841397 is about 7539.3233781288. The cubic root of 56841397 is about 384.4928319379.

The spelling of 56841397 in words is "fifty-six million, eight hundred forty-one thousand, three hundred ninety-seven".