406804697 has 8 divisors (see below), whose sum is σ = 438535944. Its totient is φ = 375136128.

The previous prime is 406804681. The next prime is 406804729. The reversal of 406804697 is 796408604.

It can be written as a sum of positive squares in 4 ways, for example, as 79049881 + 327754816 = 8891^2 + 18104^2 .

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 406804697 - 2⁴ = 406804681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406804297) 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, 1718 + ... + 28575.

It is an arithmetic number, because the mean of its divisors is an integer number (54816993).

Almost surely, 2^406804697 is an apocalyptic number.

It is an amenable number.

406804697 is a deficient number, since it is larger than the sum of its proper divisors (31731247).

406804697 is a wasteful number, since it uses less digits than its factorization.

406804697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31339.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 406804697 is about 20169.4000158656. The cubic root of 406804697 is about 740.9609484514.

The spelling of 406804697 in words is "four hundred six million, eight hundred four thousand, six hundred ninety-seven".