406776093 has 4 divisors (see below), whose sum is σ = 542368128. Its totient is φ = 271184060.

The previous prime is 406776089. The next prime is 406776103. The reversal of 406776093 is 390677604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 406776093 - 2² = 406776089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406778093) 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, 67796013 + ... + 67796018.

It is an arithmetic number, because the mean of its divisors is an integer number (135592032).

Almost surely, 2^406776093 is an apocalyptic number.

It is an amenable number.

406776093 is a deficient number, since it is larger than the sum of its proper divisors (135592035).

406776093 is a wasteful number, since it uses less digits than its factorization.

406776093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135592034.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 406776093 is about 20168.6909094269. The cubic root of 406776093 is about 740.9435814414.

The spelling of 406776093 in words is "four hundred six million, seven hundred seventy-six thousand, ninety-three".