514991783 has 2 divisors, whose sum is σ = 514991784. Its totient is φ = 514991782.

The previous prime is 514991767. The next prime is 514991801. The reversal of 514991783 is 387199415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 514991783 - 2⁴ = 514991767 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514994783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257495891 + 257495892.

It is an arithmetic number, because the mean of its divisors is an integer number (257495892).

Almost surely, 2^514991783 is an apocalyptic number.

514991783 is a deficient number, since it is larger than the sum of its proper divisors (1).

514991783 is an equidigital number, since it uses as much as digits as its factorization.

514991783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 47.

The square root of 514991783 is about 22693.4303929573. The cubic root of 514991783 is about 801.5551950638. Note that the first 3 decimals are identical.

The spelling of 514991783 in words is "five hundred fourteen million, nine hundred ninety-one thousand, seven hundred eighty-three".