405697676 has 6 divisors (see below), whose sum is σ = 709970940. Its totient is φ = 202848836.

The previous prime is 405697661. The next prime is 405697679. The reversal of 405697676 is 676796504.

It is not an unprimeable number, because it can be changed into a prime (405697679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50712206 + ... + 50712213.

It is an arithmetic number, because the mean of its divisors is an integer number (118328490).

Almost surely, 2^405697676 is an apocalyptic number.

It is an amenable number.

405697676 is a deficient number, since it is larger than the sum of its proper divisors (304273264).

405697676 is a wasteful number, since it uses less digits than its factorization.

405697676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101424423 (or 101424421 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 405697676 is about 20141.9382384119. The cubic root of 405697676 is about 740.2882222766.

The spelling of 405697676 in words is "four hundred five million, six hundred ninety-seven thousand, six hundred seventy-six".