406425077 has 4 divisors (see below), whose sum is σ = 406569996. Its totient is φ = 406280160.

The previous prime is 406425043. The next prime is 406425083. The reversal of 406425077 is 770524604.

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 71132356 + 335292721 = 8434^2 + 18311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406425077 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 (406425007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68168 + ... + 73889.

It is an arithmetic number, because the mean of its divisors is an integer number (101642499).

Almost surely, 2^406425077 is an apocalyptic number.

It is an amenable number.

406425077 is a deficient number, since it is larger than the sum of its proper divisors (144919).

406425077 is a wasteful number, since it uses less digits than its factorization.

406425077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144918.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 406425077 is about 20159.9870287657. The cubic root of 406425077 is about 740.7303946268.

The spelling of 406425077 in words is "four hundred six million, four hundred twenty-five thousand, seventy-seven".