3985954 has 24 divisors (see below), whose sum is σ = 7048620. Its totient is φ = 1685376.

The previous prime is 3985951. The next prime is 3985999. The reversal of 3985954 is 4595893.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3980025 + 5929 = 1995^2 + 77^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3985954.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8494 + ... + 8950.

Almost surely, 2^3985954 is an apocalyptic number.

3985954 is a deficient number, since it is larger than the sum of its proper divisors (3062666).

3985954 is a wasteful number, since it uses less digits than its factorization.

3985954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 555 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 3985954 is about 1996.4854119177. The cubic root of 3985954 is about 158.5540819933.

The spelling of 3985954 in words is "three million, nine hundred eighty-five thousand, nine hundred fifty-four".