1077644 has 12 divisors (see below), whose sum is σ = 1932168. Its totient is φ = 525600.

The previous prime is 1077641. The next prime is 1077673. The reversal of 1077644 is 4467701.

It is a happy number.

It is a super-2 number, since 2×1077644² = 2322633181472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1077641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3122 + ... + 3449.

It is an arithmetic number, because the mean of its divisors is an integer number (161014).

2^1077644 is an apocalyptic number.

It is an amenable number.

1077644 is a deficient number, since it is larger than the sum of its proper divisors (854524).

1077644 is a wasteful number, since it uses less digits than its factorization.

1077644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616 (or 6614 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 1077644 is about 1038.0963346434. The cubic root of 1077644 is about 102.5238968673.

It can be divided in two parts, 107764 and 4, that multiplied together give a triangular number (431056 = T₉₂₈).

The spelling of 1077644 in words is "one million, seventy-seven thousand, six hundred forty-four".