1679172743 has 2 divisors, whose sum is σ = 1679172744. Its totient is φ = 1679172742.

The previous prime is 1679172679. The next prime is 1679172769. The reversal of 1679172743 is 3472719761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1679172743 - 2⁶ = 1679172679 is a prime.

It is a super-2 number, since 2×1679172743² = 5639242201668288098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1679172793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839586371 + 839586372.

It is an arithmetic number, because the mean of its divisors is an integer number (839586372).

Almost surely, 2^1679172743 is an apocalyptic number.

1679172743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679172743 is an equidigital number, since it uses as much as digits as its factorization.

1679172743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 47.

The square root of 1679172743 is about 40977.7103191479. The cubic root of 1679172743 is about 1188.5892334750.

The spelling of 1679172743 in words is "one billion, six hundred seventy-nine million, one hundred seventy-two thousand, seven hundred forty-three".