1897358673 has 16 divisors (see below), whose sum is σ = 2896421760. Its totient is φ = 1082251776.

The previous prime is 1897358663. The next prime is 1897358707. The reversal of 1897358673 is 3768537981.

It is not a de Polignac number, because 1897358673 - 2⁴ = 1897358657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1897358623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69408 + ... + 92801.

It is an arithmetic number, because the mean of its divisors is an integer number (181026360).

Almost surely, 2^1897358673 is an apocalyptic number.

It is an amenable number.

1897358673 is a deficient number, since it is larger than the sum of its proper divisors (999063087).

1897358673 is a wasteful number, since it uses less digits than its factorization.

1897358673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162776.

The product of its digits is 7620480, while the sum is 57.

The square root of 1897358673 is about 43558.6807995835. The cubic root of 1897358673 is about 1237.9881251998.

The spelling of 1897358673 in words is "one billion, eight hundred ninety-seven million, three hundred fifty-eight thousand, six hundred seventy-three".