401345963 has 2 divisors, whose sum is σ = 401345964. Its totient is φ = 401345962.

The previous prime is 401345951. The next prime is 401345977. The reversal of 401345963 is 369543104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401345963 - 2⁶ = 401345899 is a prime.

It is a super-2 number, since 2×401345963² = 322157164032794738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401345863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200672981 + 200672982.

It is an arithmetic number, because the mean of its divisors is an integer number (200672982).

Almost surely, 2^401345963 is an apocalyptic number.

401345963 is a deficient number, since it is larger than the sum of its proper divisors (1).

401345963 is an equidigital number, since it uses as much as digits as its factorization.

401345963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 401345963 is about 20033.6208160183. The cubic root of 401345963 is about 737.6318028534.

The spelling of 401345963 in words is "four hundred one million, three hundred forty-five thousand, nine hundred sixty-three".