34684857 has 6 divisors (see below), whose sum is σ = 50100362. Its totient is φ = 23123232.

The previous prime is 34684847. The next prime is 34684883. The reversal of 34684857 is 75848643.

It can be written as a sum of positive squares in only one way, i.e., 31573161 + 3111696 = 5619^2 + 1764^2 .

It is not a de Polignac number, because 34684857 - 2¹² = 34680761 is a prime.

It is a super-2 number, since 2×34684857² = 2406078610220898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34684847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1926928 + ... + 1926945.

Almost surely, 2^34684857 is an apocalyptic number.

It is an amenable number.

34684857 is a deficient number, since it is larger than the sum of its proper divisors (15415505).

34684857 is a wasteful number, since it uses less digits than its factorization.

34684857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853879 (or 3853876 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 34684857 is about 5889.3851122167. The cubic root of 34684857 is about 326.1219041756.

The spelling of 34684857 in words is "thirty-four million, six hundred eighty-four thousand, eight hundred fifty-seven".