401684753 has 2 divisors, whose sum is σ = 401684754. Its totient is φ = 401684752.

The previous prime is 401684711. The next prime is 401684783. The reversal of 401684753 is 357486104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359785024 + 41899729 = 18968^2 + 6473^2 .

It is a cyclic number.

It is not a de Polignac number, because 401684753 - 2²⁰ = 400636177 is a prime.

It is a super-2 number, since 2×401684753² = 322701281585342018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401684783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200842376 + 200842377.

It is an arithmetic number, because the mean of its divisors is an integer number (200842377).

Almost surely, 2^401684753 is an apocalyptic number.

It is an amenable number.

401684753 is a deficient number, since it is larger than the sum of its proper divisors (1).

401684753 is an equidigital number, since it uses as much as digits as its factorization.

401684753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 401684753 is about 20042.0745682676. The cubic root of 401684753 is about 737.8392979801.

The spelling of 401684753 in words is "four hundred one million, six hundred eighty-four thousand, seven hundred fifty-three".