677393 has 4 divisors (see below), whose sum is σ = 690228. Its totient is φ = 664560.

The previous prime is 677387. The next prime is 677423. The reversal of 677393 is 393776.

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 494209 + 183184 = 703^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 677393 - 2¹² = 673297 is a prime.

It is a super-2 number, since 2×677393² = 917722552898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677323) 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, 6338 + ... + 6443.

It is an arithmetic number, because the mean of its divisors is an integer number (172557).

2⁶⁷⁷³⁹³ is an apocalyptic number.

It is an amenable number.

677393 is a deficient number, since it is larger than the sum of its proper divisors (12835).

677393 is a wasteful number, since it uses less digits than its factorization.

677393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12834.

The product of its digits is 23814, while the sum is 35.

The square root of 677393 is about 823.0388812201. The cubic root of 677393 is about 87.8240717306.

The spelling of 677393 in words is "six hundred seventy-seven thousand, three hundred ninety-three".