34787938 has 4 divisors (see below), whose sum is σ = 52181910. Its totient is φ = 17393968.

The previous prime is 34787927. The next prime is 34787939. The reversal of 34787938 is 83978743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83978743 = 409 ⋅205327.

It can be written as a sum of positive squares in only one way, i.e., 30614089 + 4173849 = 5533^2 + 2043^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 34787891 and 34787900.

It is not an unprimeable number, because it can be changed into a prime (34787939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8696983 + ... + 8696986.

Almost surely, 2^34787938 is an apocalyptic number.

34787938 is a deficient number, since it is larger than the sum of its proper divisors (17393972).

34787938 is a wasteful number, since it uses less digits than its factorization.

34787938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17393971.

The product of its digits is 1016064, while the sum is 49.

The square root of 34787938 is about 5898.1300426491. The cubic root of 34787938 is about 326.4446552486. Note that the first 3 decimals are identical.

The spelling of 34787938 in words is "thirty-four million, seven hundred eighty-seven thousand, nine hundred thirty-eight".