421705696 has 12 divisors (see below), whose sum is σ = 830233152. Its totient is φ = 210852832.

The previous prime is 421705693. The next prime is 421705709. The reversal of 421705696 is 696507124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421705693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6589120 + ... + 6589183.

It is an arithmetic number, because the mean of its divisors is an integer number (69186096).

Almost surely, 2^421705696 is an apocalyptic number.

It is an amenable number.

421705696 is a deficient number, since it is larger than the sum of its proper divisors (408527456).

421705696 is a wasteful number, since it uses less digits than its factorization.

421705696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13178313 (or 13178305 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 421705696 is about 20535.4740875393. The cubic root of 421705696 is about 749.8996582797.

The spelling of 421705696 in words is "four hundred twenty-one million, seven hundred five thousand, six hundred ninety-six".