2017929491 has 2 divisors, whose sum is σ = 2017929492. Its totient is φ = 2017929490.

The previous prime is 2017929271. The next prime is 2017929497. The reversal of 2017929491 is 1949297102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2017929491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2017929497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008964745 + 1008964746.

It is an arithmetic number, because the mean of its divisors is an integer number (1008964746).

Almost surely, 2^2017929491 is an apocalyptic number.

2017929491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2017929491 is an equidigital number, since it uses as much as digits as its factorization.

2017929491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 2017929491 is about 44921.3700926408. The cubic root of 2017929491 is about 1263.6748121548.

The spelling of 2017929491 in words is "two billion, seventeen million, nine hundred twenty-nine thousand, four hundred ninety-one".