405826797 has 16 divisors (see below), whose sum is σ = 561666560. Its totient is φ = 260366400.

The previous prime is 405826679. The next prime is 405826801. The reversal of 405826797 is 797628504.

It is not a de Polignac number, because 405826797 - 2²² = 401632493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405826297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4779 + ... + 28887.

It is an arithmetic number, because the mean of its divisors is an integer number (35104160).

Almost surely, 2^405826797 is an apocalyptic number.

It is an amenable number.

405826797 is a deficient number, since it is larger than the sum of its proper divisors (155839763).

405826797 is a wasteful number, since it uses less digits than its factorization.

405826797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24324.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 405826797 is about 20145.1432608458. The cubic root of 405826797 is about 740.3667508807.

The spelling of 405826797 in words is "four hundred five million, eight hundred twenty-six thousand, seven hundred ninety-seven".