1970000 has 50 divisors (see below), whose sum is σ = 4793778. Its totient is φ = 784000.

The previous prime is 1969997. The next prime is 1970029. The reversal of 1970000 is 791.

It can be written as a sum of positive squares in 5 ways, for example, as 238144 + 1731856 = 488^2 + 1316^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9902 + ... + 10098.

2^1970000 is an apocalyptic number.

1970000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1970000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2396889).

1970000 is an abundant number, since it is smaller than the sum of its proper divisors (2823778).

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

1970000 is an equidigital number, since it uses as much as digits as its factorization.

1970000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 1970000 is about 1403.5668847618. The cubic root of 1970000 is about 125.3589681482.

Adding to 1970000 its reverse (791), we get a palindrome (1970791).

The spelling of 1970000 in words is "one million, nine hundred seventy thousand".