1679057291 has 4 divisors (see below), whose sum is σ = 1679595672. Its totient is φ = 1678518912.

The previous prime is 1679057279. The next prime is 1679057321. The reversal of 1679057291 is 1927509761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1927509761 = 103 ⋅18713687.

It is a cyclic number.

It is not a de Polignac number, because 1679057291 - 2¹⁴ = 1679040907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1679057251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264485 + ... + 270758.

It is an arithmetic number, because the mean of its divisors is an integer number (419898918).

Almost surely, 2^1679057291 is an apocalyptic number.

1679057291 is a deficient number, since it is larger than the sum of its proper divisors (538381).

1679057291 is an equidigital number, since it uses as much as digits as its factorization.

1679057291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538380.

The product of its (nonzero) digits is 238140, while the sum is 47.

The square root of 1679057291 is about 40976.3015778633. The cubic root of 1679057291 is about 1188.5619922536.

The spelling of 1679057291 in words is "one billion, six hundred seventy-nine million, fifty-seven thousand, two hundred ninety-one".