677467381 has 4 divisors (see below), whose sum is σ = 677635200. Its totient is φ = 677299564.

The previous prime is 677467361. The next prime is 677467409. The reversal of 677467381 is 183764776.

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 677467381 - 2¹¹ = 677465333 is a prime.

It is a super-2 number, since 2×677467381² = 917924104637998322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677467361) 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, 77701 + ... + 85978.

It is an arithmetic number, because the mean of its divisors is an integer number (169408800).

Almost surely, 2^677467381 is an apocalyptic number.

It is an amenable number.

677467381 is a deficient number, since it is larger than the sum of its proper divisors (167819).

677467381 is a wasteful number, since it uses less digits than its factorization.

677467381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167818.

The product of its digits is 1185408, while the sum is 49.

The square root of 677467381 is about 26028.2035684371. The cubic root of 677467381 is about 878.2728611438.

The spelling of 677467381 in words is "six hundred seventy-seven million, four hundred sixty-seven thousand, three hundred eighty-one".