1971954 has 24 divisors (see below), whose sum is σ = 4335552. Its totient is φ = 647640.

The previous prime is 1971911. The next prime is 1971967. The reversal of 1971954 is 4591791.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 507 + ... + 2049.

It is an arithmetic number, because the mean of its divisors is an integer number (180648).

2^1971954 is an apocalyptic number.

1971954 is an abundant number, since it is smaller than the sum of its proper divisors (2363598).

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

1971954 is a wasteful number, since it uses less digits than its factorization.

1971954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1619 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 1971954 is about 1404.2627959182. The cubic root of 1971954 is about 125.4004013937.

The spelling of 1971954 in words is "one million, nine hundred seventy-one thousand, nine hundred fifty-four".