1677957613 has 8 divisors (see below), whose sum is σ = 1781700408. Its totient is φ = 1574774784.

The previous prime is 1677957607. The next prime is 1677957637. The reversal of 1677957613 is 3167597761.

It can be written as a sum of positive squares in 4 ways, for example, as 759443364 + 918514249 = 27558^2 + 30307^2 .

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 1677957613 - 2¹³ = 1677949421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1677957643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133806 + ... + 145807.

It is an arithmetic number, because the mean of its divisors is an integer number (222712551).

Almost surely, 2^1677957613 is an apocalyptic number.

It is an amenable number.

1677957613 is a deficient number, since it is larger than the sum of its proper divisors (103742795).

1677957613 is a wasteful number, since it uses less digits than its factorization.

1677957613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279983.

The product of its digits is 1666980, while the sum is 52.

The square root of 1677957613 is about 40962.8809167519. The cubic root of 1677957613 is about 1188.3024575477.

The spelling of 1677957613 in words is "one billion, six hundred seventy-seven million, nine hundred fifty-seven thousand, six hundred thirteen".