3997954 has 4 divisors (see below), whose sum is σ = 5996934. Its totient is φ = 1998976.

The previous prime is 3997933. The next prime is 3997963. The reversal of 3997954 is 4597993.

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., 2798929 + 1199025 = 1673^2 + 1095^2 .

It is a super-2 number, since 2×3997954² = 31967272372232, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999487 + ... + 999490.

Almost surely, 2^3997954 is an apocalyptic number.

3997954 is a deficient number, since it is larger than the sum of its proper divisors (1998980).

3997954 is a wasteful number, since it uses less digits than its factorization.

3997954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998979.

The product of its digits is 306180, while the sum is 46.

The square root of 3997954 is about 1999.4884345752. The cubic root of 3997954 is about 158.7130353930.

The spelling of 3997954 in words is "three million, nine hundred ninety-seven thousand, nine hundred fifty-four".