8021954 has 4 divisors (see below), whose sum is σ = 12032934. Its totient is φ = 4010976.

The previous prime is 8021941. The next prime is 8021969. The reversal of 8021954 is 4591208.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7166329 + 855625 = 2677^2 + 925^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2005487 + ... + 2005490.

Almost surely, 2^8021954 is an apocalyptic number.

8021954 is a deficient number, since it is larger than the sum of its proper divisors (4010980).

8021954 is a wasteful number, since it uses less digits than its factorization.

8021954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010979.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 8021954 is about 2832.3054213838. The cubic root of 8021954 is about 200.1827829012.

The spelling of 8021954 in words is "eight million, twenty-one thousand, nine hundred fifty-four".