34931881 has 2 divisors, whose sum is σ = 34931882. Its totient is φ = 34931880.

The previous prime is 34931807. The next prime is 34931893. The reversal of 34931881 is 18813943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34105600 + 826281 = 5840^2 + 909^2 .

It is an emirp because it is prime and its reverse (18813943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34931881 - 2²¹ = 32834729 is a prime.

It is a super-2 number, since 2×34931881² = 2440472620396322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34931881.

It is not a weakly prime, because it can be changed into another prime (34931801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17465940 + 17465941.

It is an arithmetic number, because the mean of its divisors is an integer number (17465941).

Almost surely, 2^34931881 is an apocalyptic number.

It is an amenable number.

34931881 is a deficient number, since it is larger than the sum of its proper divisors (1).

34931881 is an equidigital number, since it uses as much as digits as its factorization.

34931881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 34931881 is about 5910.3198729003. The cubic root of 34931881 is about 326.8942819916.

The spelling of 34931881 in words is "thirty-four million, nine hundred thirty-one thousand, eight hundred eighty-one".