1897534701 has 16 divisors (see below), whose sum is σ = 2838459520. Its totient is φ = 1252739520.

The previous prime is 1897534697. The next prime is 1897534721. The reversal of 1897534701 is 1074357981.

It is not a de Polignac number, because 1897534701 - 2² = 1897534697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1897534721) 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, 338380 + ... + 343941.

It is an arithmetic number, because the mean of its divisors is an integer number (177403720).

Almost surely, 2^1897534701 is an apocalyptic number.

It is an amenable number.

1897534701 is a deficient number, since it is larger than the sum of its proper divisors (940924819).

1897534701 is a wasteful number, since it uses less digits than its factorization.

1897534701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682433 (or 682427 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 1897534701 is about 43560.7013373293. The cubic root of 1897534701 is about 1238.0264089181.

The spelling of 1897534701 in words is "one billion, eight hundred ninety-seven million, five hundred thirty-four thousand, seven hundred one".