34780931 has 2 divisors, whose sum is σ = 34780932. Its totient is φ = 34780930.

The previous prime is 34780927. The next prime is 34780939. The reversal of 34780931 is 13908743.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34780931 - 2² = 34780927 is a prime.

It is a super-2 number, since 2×34780931² = 2419426322453522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34780891 and 34780900.

It is not a weakly prime, because it can be changed into another prime (34780939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17390465 + 17390466.

It is an arithmetic number, because the mean of its divisors is an integer number (17390466).

Almost surely, 2^34780931 is an apocalyptic number.

34780931 is a deficient number, since it is larger than the sum of its proper divisors (1).

34780931 is an equidigital number, since it uses as much as digits as its factorization.

34780931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 34780931 is about 5897.5360109117. The cubic root of 34780931 is about 326.4227362404.

The spelling of 34780931 in words is "thirty-four million, seven hundred eighty thousand, nine hundred thirty-one".