1971464 has 32 divisors (see below), whose sum is σ = 4134240. Its totient is φ = 873600.

The previous prime is 1971451. The next prime is 1971467. The reversal of 1971464 is 4641791.

It is a self number, because there is not a number n which added to its sum of digits gives 1971464.

It is not an unprimeable number, because it can be changed into a prime (1971467) 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, 3524 + ... + 4044.

It is an arithmetic number, because the mean of its divisors is an integer number (129195).

2^1971464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1971464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2067120).

1971464 is an abundant number, since it is smaller than the sum of its proper divisors (2162776).

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

1971464 is a wasteful number, since it uses less digits than its factorization.

1971464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 577 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 1971464 is about 1404.0883163106. The cubic root of 1971464 is about 125.3900138480.

It can be divided in two parts, 197 and 1464, that added together give a palindrome (1661).

The spelling of 1971464 in words is "one million, nine hundred seventy-one thousand, four hundred sixty-four".