33868457 has 6 divisors (see below), whose sum is σ = 39398058. Its totient is φ = 29030064.

The previous prime is 33868447. The next prime is 33868463. The reversal of 33868457 is 75486833.

It can be written as a sum of positive squares in only one way, i.e., 30349081 + 3519376 = 5509^2 + 1876^2 .

It is not a de Polignac number, because 33868457 - 2⁴ = 33868441 is a prime.

It is a super-2 number, since 2×33868457² = 2294144759121698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33868427) 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, 345548 + ... + 345645.

It is an arithmetic number, because the mean of its divisors is an integer number (6566343).

Almost surely, 2^33868457 is an apocalyptic number.

It is an amenable number.

33868457 is a deficient number, since it is larger than the sum of its proper divisors (5529601).

33868457 is an equidigital number, since it uses as much as digits as its factorization.

33868457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691207 (or 691200 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 33868457 is about 5819.6612444368. The cubic root of 33868457 is about 323.5428477590.

The spelling of 33868457 in words is "thirty-three million, eight hundred sixty-eight thousand, four hundred fifty-seven".