401303983 has 2 divisors, whose sum is σ = 401303984. Its totient is φ = 401303982.

The previous prime is 401303957. The next prime is 401304037. The reversal of 401303983 is 389303104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401303983 - 2²¹ = 399206831 is a prime.

It is a super-2 number, since 2×401303983² = 322089773543328578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401303923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200651991 + 200651992.

It is an arithmetic number, because the mean of its divisors is an integer number (200651992).

Almost surely, 2^401303983 is an apocalyptic number.

401303983 is a deficient number, since it is larger than the sum of its proper divisors (1).

401303983 is an equidigital number, since it uses as much as digits as its factorization.

401303983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 401303983 is about 20032.5730499105. The cubic root of 401303983 is about 737.6060836770.

The spelling of 401303983 in words is "four hundred one million, three hundred three thousand, nine hundred eighty-three".