1610664 has 32 divisors (see below), whose sum is σ = 4393440. Its totient is φ = 488000.

The previous prime is 1610659. The next prime is 1610681. The reversal of 1610664 is 4660161.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 2787 + ... + 3314.

It is an arithmetic number, because the mean of its divisors is an integer number (137295).

2^1610664 is an apocalyptic number.

It is an amenable number.

1610664 is an abundant number, since it is smaller than the sum of its proper divisors (2782776).

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

1610664 is a wasteful number, since it uses less digits than its factorization.

1610664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121 (or 6117 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1610664 is about 1269.1193797275. The cubic root of 1610664 is about 117.2199820713.

The spelling of 1610664 in words is "one million, six hundred ten thousand, six hundred sixty-four".