406749777 has 16 divisors (see below), whose sum is σ = 652431360. Its totient is φ = 220195152.

The previous prime is 406749773. The next prime is 406749793. The reversal of 406749777 is 777947604.

It is not a de Polignac number, because 406749777 - 2² = 406749773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406749773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509313 + ... + 510110.

It is an arithmetic number, because the mean of its divisors is an integer number (40776960).

Almost surely, 2^406749777 is an apocalyptic number.

It is an amenable number.

406749777 is a deficient number, since it is larger than the sum of its proper divisors (245681583).

406749777 is a wasteful number, since it uses less digits than its factorization.

406749777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019452.

The product of its (nonzero) digits is 2074464, while the sum is 51.

The square root of 406749777 is about 20168.0385015499. The cubic root of 406749777 is about 740.9276028788.

The spelling of 406749777 in words is "four hundred six million, seven hundred forty-nine thousand, seven hundred seventy-seven".