1047664 has 10 divisors (see below), whose sum is σ = 2029880. Its totient is φ = 523824.

The previous prime is 1047653. The next prime is 1047667. The reversal of 1047664 is 4667401.

It is a nialpdrome in base 16.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32724 + ... + 32755.

It is an arithmetic number, because the mean of its divisors is an integer number (202988).

2^1047664 is an apocalyptic number.

It is an amenable number.

1047664 is a deficient number, since it is larger than the sum of its proper divisors (982216).

1047664 is an equidigital number, since it uses as much as digits as its factorization.

1047664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65487 (or 65481 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1047664 is about 1023.5545906301. The cubic root of 1047664 is about 101.5642050522.

It can be divided in two parts, 1047 and 664, that added together give a triangular number (1711 = T₅₈).

The spelling of 1047664 in words is "one million, forty-seven thousand, six hundred sixty-four".