1897016970 has 32 divisors (see below), whose sum is σ = 4630011840. Its totient is φ = 497296640.

The previous prime is 1897016959. The next prime is 1897016971. The reversal of 1897016970 is 796107981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1897016971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534111 + ... + 537650.

It is an arithmetic number, because the mean of its divisors is an integer number (144687870).

Almost surely, 2^1897016970 is an apocalyptic number.

1897016970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1897016970 is an abundant number, since it is smaller than the sum of its proper divisors (2732994870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1897016970 is a wasteful number, since it uses less digits than its factorization.

1897016970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071830.

The product of its (nonzero) digits is 190512, while the sum is 48.

The square root of 1897016970 is about 43554.7582934402. The cubic root of 1897016970 is about 1237.9138026412.

The spelling of 1897016970 in words is "one billion, eight hundred ninety-seven million, sixteen thousand, nine hundred seventy".