1516664 has 8 divisors (see below), whose sum is σ = 2843760. Its totient is φ = 758328.

The previous prime is 1516663. The next prime is 1516681. The reversal of 1516664 is 4666151.

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 (1516661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94784 + ... + 94799.

It is an arithmetic number, because the mean of its divisors is an integer number (355470).

2^1516664 is an apocalyptic number.

It is an amenable number.

1516664 is a deficient number, since it is larger than the sum of its proper divisors (1327096).

1516664 is a wasteful number, since it uses less digits than its factorization.

1516664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189589 (or 189585 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 1516664 is about 1231.5291307963. The cubic root of 1516664 is about 114.8937645252.

The spelling of 1516664 in words is "one million, five hundred sixteen thousand, six hundred sixty-four".