401597793 has 6 divisors (see below), whose sum is σ = 580085714. Its totient is φ = 267731856.

The previous prime is 401597773. The next prime is 401597803. The reversal of 401597793 is 397795104.

It can be written as a sum of positive squares in only one way, i.e., 264777984 + 136819809 = 16272^2 + 11697^2 .

It is a de Polignac number, because none of the positive numbers 2^k-401597793 is a prime.

It is a super-2 number, since 2×401597793² = 322561574684941698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401597743) 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 5 ways as a sum of consecutive naturals, for example, 22310980 + ... + 22310997.

Almost surely, 2^401597793 is an apocalyptic number.

It is an amenable number.

401597793 is a deficient number, since it is larger than the sum of its proper divisors (178487921).

401597793 is a wasteful number, since it uses less digits than its factorization.

401597793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44621983 (or 44621980 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 401597793 is about 20039.9050147450. The cubic root of 401597793 is about 737.7860496425.

The spelling of 401597793 in words is "four hundred one million, five hundred ninety-seven thousand, seven hundred ninety-three".