3648870 has 24 divisors (see below), whose sum is σ = 9487296. Its totient is φ = 973008.

The previous prime is 3648859. The next prime is 3648899. The reversal of 3648870 is 788463.

3648870 is a `hidden beast` number, since 3 + 648 + 8 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20182 + ... + 20361.

It is an arithmetic number, because the mean of its divisors is an integer number (395304).

Almost surely, 2^3648870 is an apocalyptic number.

3648870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3648870 is an abundant number, since it is smaller than the sum of its proper divisors (5838426).

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

3648870 is a wasteful number, since it uses less digits than its factorization.

3648870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40556 (or 40553 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 3648870 is about 1910.2015600454. The cubic root of 3648870 is about 153.9522818368.

The spelling of 3648870 in words is "three million, six hundred forty-eight thousand, eight hundred seventy".