3801655 has 24 divisors (see below), whose sum is σ = 5402160. Its totient is φ = 2545920.

The previous prime is 3801631. The next prime is 3801661. The reversal of 3801655 is 5561083.

3801655 = T₃₀₉ + T₃₁₀ + ... + T₃₇₃.

It is not a de Polignac number, because 3801655 - 2⁹ = 3801143 is a prime.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9091 + ... + 9499.

It is an arithmetic number, because the mean of its divisors is an integer number (225090).

Almost surely, 2^3801655 is an apocalyptic number.

3801655 is a deficient number, since it is larger than the sum of its proper divisors (1600505).

3801655 is a wasteful number, since it uses less digits than its factorization.

3801655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 3801655 is about 1949.7833212950. The cubic root of 3801655 is about 156.0717262756.

The spelling of 3801655 in words is "three million, eight hundred one thousand, six hundred fifty-five".