1552664 has 8 divisors (see below), whose sum is σ = 2911260. Its totient is φ = 776328.

The previous prime is 1552657. The next prime is 1552669. The reversal of 1552664 is 4662551.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97034 + ... + 97049.

2^1552664 is an apocalyptic number.

It is an amenable number.

1552664 is a deficient number, since it is larger than the sum of its proper divisors (1358596).

1552664 is a wasteful number, since it uses less digits than its factorization.

1552664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194089 (or 194085 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 1552664 is about 1246.0593886328. The cubic root of 1552664 is about 115.7957165548.

The spelling of 1552664 in words is "one million, five hundred fifty-two thousand, six hundred sixty-four".