3940654 has 4 divisors (see below), whose sum is σ = 5910984. Its totient is φ = 1970326.

The previous prime is 3940637. The next prime is 3940663. The reversal of 3940654 is 4560493.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985162 + ... + 985165.

It is an arithmetic number, because the mean of its divisors is an integer number (1477746).

Almost surely, 2^3940654 is an apocalyptic number.

3940654 is a deficient number, since it is larger than the sum of its proper divisors (1970330).

3940654 is a wasteful number, since it uses less digits than its factorization.

3940654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970329.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3940654 is about 1985.1080575122. The cubic root of 3940654 is about 157.9511412246.

The spelling of 3940654 in words is "three million, nine hundred forty thousand, six hundred fifty-four".