1849790897 has 8 divisors (see below), whose sum is σ = 1914105600. Its totient is φ = 1785511504.

The previous prime is 1849790869. The next prime is 1849790963. The reversal of 1849790897 is 7980979481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1849790897 - 2¹² = 1849786801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1849790827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141254 + ... + 153792.

It is an arithmetic number, because the mean of its divisors is an integer number (239263200).

Almost surely, 2^1849790897 is an apocalyptic number.

It is an amenable number.

1849790897 is a deficient number, since it is larger than the sum of its proper divisors (64314703).

1849790897 is a wasteful number, since it uses less digits than its factorization.

1849790897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17655.

The product of its (nonzero) digits is 9144576, while the sum is 62.

The square root of 1849790897 is about 43009.1954935221. The cubic root of 1849790897 is about 1227.5547730878.

The spelling of 1849790897 in words is "one billion, eight hundred forty-nine million, seven hundred ninety thousand, eight hundred ninety-seven".