213677705 has 24 divisors (see below), whose sum is σ = 282439872. Its totient is φ = 154874016.

The previous prime is 213677677. The next prime is 213677719. The reversal of 213677705 is 507776312.

It is not a de Polignac number, because 213677705 - 2¹⁶ = 213612169 is a prime.

It is a super-2 number, since 2×213677705² = 91316323228134050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38942 + ... + 44088.

It is an arithmetic number, because the mean of its divisors is an integer number (11768328).

Almost surely, 2^213677705 is an apocalyptic number.

It is an amenable number.

213677705 is a deficient number, since it is larger than the sum of its proper divisors (68762167).

213677705 is a wasteful number, since it uses less digits than its factorization.

213677705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5213 (or 5194 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 213677705 is about 14617.7188712877. The cubic root of 213677705 is about 597.8419743664.

The spelling of 213677705 in words is "two hundred thirteen million, six hundred seventy-seven thousand, seven hundred five".