3969654 has 16 divisors (see below), whose sum is σ = 8550192. Its totient is φ = 1221408.

The previous prime is 3969649. The next prime is 3969659. The reversal of 3969654 is 4569693.

It is an interprime number because it is at equal distance from previous prime (3969649) and next prime (3969659).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25369 + ... + 25524.

It is an arithmetic number, because the mean of its divisors is an integer number (534387).

Almost surely, 2^3969654 is an apocalyptic number.

3969654 is an abundant number, since it is smaller than the sum of its proper divisors (4580538).

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

3969654 is a wasteful number, since it uses less digits than its factorization.

3969654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50911.

The product of its digits is 174960, while the sum is 42.

The square root of 3969654 is about 1992.3990564142. The cubic root of 3969654 is about 158.3376584845.

The spelling of 3969654 in words is "three million, nine hundred sixty-nine thousand, six hundred fifty-four".