406677377 has 4 divisors (see below), whose sum is σ = 407621376. Its totient is φ = 405733380.

The previous prime is 406677373. The next prime is 406677389. The reversal of 406677377 is 773776604.

It is a happy number.

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 406677377 - 2² = 406677373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406677371) 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, 471353 + ... + 472214.

It is an arithmetic number, because the mean of its divisors is an integer number (101905344).

Almost surely, 2^406677377 is an apocalyptic number.

It is an amenable number.

406677377 is a deficient number, since it is larger than the sum of its proper divisors (943999).

406677377 is an equidigital number, since it uses as much as digits as its factorization.

406677377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943998.

The product of its (nonzero) digits is 1037232, while the sum is 47.

The square root of 406677377 is about 20166.2435024474. The cubic root of 406677377 is about 740.8836394525.

The spelling of 406677377 in words is "four hundred six million, six hundred seventy-seven thousand, three hundred seventy-seven".