401775963 has 4 divisors (see below), whose sum is σ = 535701288. Its totient is φ = 267850640.

The previous prime is 401775931. The next prime is 401775973. The reversal of 401775963 is 369577104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401775963 - 2⁵ = 401775931 is a prime.

It is a super-2 number, since 2×401775963² = 322847848889154738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401775973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66962658 + ... + 66962663.

It is an arithmetic number, because the mean of its divisors is an integer number (133925322).

Almost surely, 2^401775963 is an apocalyptic number.

401775963 is a deficient number, since it is larger than the sum of its proper divisors (133925325).

401775963 is a wasteful number, since it uses less digits than its factorization.

401775963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133925324.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 401775963 is about 20044.3499021545. The cubic root of 401775963 is about 737.8951404692.

The spelling of 401775963 in words is "four hundred one million, seven hundred seventy-five thousand, nine hundred sixty-three".