401097757 has 2 divisors, whose sum is σ = 401097758. Its totient is φ = 401097756.

The previous prime is 401097743. The next prime is 401097787. The reversal of 401097757 is 757790104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354230041 + 46867716 = 18821^2 + 6846^2 .

It is a cyclic number.

It is not a de Polignac number, because 401097757 - 2¹⁹ = 400573469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401097727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200548878 + 200548879.

It is an arithmetic number, because the mean of its divisors is an integer number (200548879).

Almost surely, 2^401097757 is an apocalyptic number.

It is an amenable number.

401097757 is a deficient number, since it is larger than the sum of its proper divisors (1).

401097757 is an equidigital number, since it uses as much as digits as its factorization.

401097757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 401097757 is about 20027.4251215677. The cubic root of 401097757 is about 737.4797126278.

The spelling of 401097757 in words is "four hundred one million, ninety-seven thousand, seven hundred fifty-seven".