406700677 has 4 divisors (see below), whose sum is σ = 406768396. Its totient is φ = 406632960.

The previous prime is 406700663. The next prime is 406700713. The reversal of 406700677 is 776007604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 375351876 + 31348801 = 19374^2 + 5599^2 .

It is a cyclic number.

It is not a de Polignac number, because 406700677 - 2²³ = 398312069 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 (406700617) 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 in 3 ways as a sum of consecutive naturals, for example, 23868 + ... + 37189.

It is an arithmetic number, because the mean of its divisors is an integer number (101692099).

Almost surely, 2^406700677 is an apocalyptic number.

It is an amenable number.

406700677 is a deficient number, since it is larger than the sum of its proper divisors (67719).

406700677 is an equidigital number, since it uses as much as digits as its factorization.

406700677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67718.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 406700677 is about 20166.8211922454. The cubic root of 406700677 is about 740.8977884726.

The spelling of 406700677 in words is "four hundred six million, seven hundred thousand, six hundred seventy-seven".