674711885 has 4 divisors (see below), whose sum is σ = 809654268. Its totient is φ = 539769504.

The previous prime is 674711881. The next prime is 674711951. The reversal of 674711885 is 588117476.

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 153685609 + 521026276 = 12397^2 + 22826^2 .

It is a cyclic number.

It is not a de Polignac number, because 674711885 - 2² = 674711881 is a prime.

It is a super-2 number, since 2×674711885² = 910472255520506450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674711881) 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, 67471184 + ... + 67471193.

It is an arithmetic number, because the mean of its divisors is an integer number (202413567).

Almost surely, 2^674711885 is an apocalyptic number.

It is an amenable number.

674711885 is a deficient number, since it is larger than the sum of its proper divisors (134942383).

674711885 is a wasteful number, since it uses less digits than its factorization.

674711885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134942382.

The product of its digits is 376320, while the sum is 47.

The square root of 674711885 is about 25975.2167459677. The cubic root of 674711885 is about 877.0804957953.

The spelling of 674711885 in words is "six hundred seventy-four million, seven hundred eleven thousand, eight hundred eighty-five".