34782991 has 2 divisors, whose sum is σ = 34782992. Its totient is φ = 34782990.

The previous prime is 34782959. The next prime is 34783009. The reversal of 34782991 is 19928743.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34782991 - 2⁵ = 34782959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34782941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17391495 + 17391496.

It is an arithmetic number, because the mean of its divisors is an integer number (17391496).

Almost surely, 2^34782991 is an apocalyptic number.

34782991 is a deficient number, since it is larger than the sum of its proper divisors (1).

34782991 is an equidigital number, since it uses as much as digits as its factorization.

34782991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 34782991 is about 5897.7106575348. The cubic root of 34782991 is about 326.4291805529.

It can be divided in two parts, 347 and 82991, that added together give a palindrome (83338).

The spelling of 34782991 in words is "thirty-four million, seven hundred eighty-two thousand, nine hundred ninety-one".