3654906 has 16 divisors (see below), whose sum is σ = 7379424. Its totient is φ = 1206704.

The previous prime is 3654883. The next prime is 3654913. The reversal of 3654906 is 6094563.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205 + ... + 3488.

It is an arithmetic number, because the mean of its divisors is an integer number (461214).

Almost surely, 2^3654906 is an apocalyptic number.

3654906 is an abundant number, since it is smaller than the sum of its proper divisors (3724518).

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

3654906 is a wasteful number, since it uses less digits than its factorization.

3654906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 3654906 is about 1911.7808451807. The cubic root of 3654906 is about 154.0371249114.

It can be divided in two parts, 3654 and 906, that added together give a triangular number (4560 = T₉₅).

The spelling of 3654906 in words is "three million, six hundred fifty-four thousand, nine hundred six".