677656453 has 8 divisors (see below), whose sum is σ = 685379072. Its totient is φ = 669949056.

The previous prime is 677656439. The next prime is 677656457. The reversal of 677656453 is 354656776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 677656453 - 2⁹ = 677655941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677656397 and 677656406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677656457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102226 + ... + 108652.

It is an arithmetic number, because the mean of its divisors is an integer number (85672384).

Almost surely, 2^677656453 is an apocalyptic number.

It is an amenable number.

677656453 is a deficient number, since it is larger than the sum of its proper divisors (7722619).

677656453 is a wasteful number, since it uses less digits than its factorization.

677656453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611.

The product of its digits is 3175200, while the sum is 49.

The square root of 677656453 is about 26031.8353751709. The cubic root of 677656453 is about 878.3545582436.

The spelling of 677656453 in words is "six hundred seventy-seven million, six hundred fifty-six thousand, four hundred fifty-three".