406712621 has 8 divisors (see below), whose sum is σ = 477377280. Its totient is φ = 339188688.

The previous prime is 406712599. The next prime is 406712623. The reversal of 406712621 is 126217604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 406712621 - 2¹⁰ = 406711597 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 (406712623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784901 + ... + 785418.

It is an arithmetic number, because the mean of its divisors is an integer number (59672160).

Almost surely, 2^406712621 is an apocalyptic number.

It is an amenable number.

406712621 is a deficient number, since it is larger than the sum of its proper divisors (70664659).

406712621 is a wasteful number, since it uses less digits than its factorization.

406712621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570363.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 406712621 is about 20167.1173200336. The cubic root of 406712621 is about 740.9050413058.

The spelling of 406712621 in words is "four hundred six million, seven hundred twelve thousand, six hundred twenty-one".