401713397 has 2 divisors, whose sum is σ = 401713398. Its totient is φ = 401713396.

The previous prime is 401713393. The next prime is 401713399. The reversal of 401713397 is 793317104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393268561 + 8444836 = 19831^2 + 2906^2 .

It is a cyclic number.

It is not a de Polignac number, because 401713397 - 2² = 401713393 is a prime.

It is a super-2 number, since 2×401713397² = 322747306658559218, which contains 22 as substring.

Together with 401713399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401713393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200856698 + 200856699.

It is an arithmetic number, because the mean of its divisors is an integer number (200856699).

Almost surely, 2^401713397 is an apocalyptic number.

It is an amenable number.

401713397 is a deficient number, since it is larger than the sum of its proper divisors (1).

401713397 is an equidigital number, since it uses as much as digits as its factorization.

401713397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 401713397 is about 20042.7891522113. The cubic root of 401713397 is about 737.8568359178.

The spelling of 401713397 in words is "four hundred one million, seven hundred thirteen thousand, three hundred ninety-seven".