739664 has 10 divisors (see below), whose sum is σ = 1433130. Its totient is φ = 369824.

The previous prime is 739649. The next prime is 739693. The reversal of 739664 is 466937.

It can be written as a sum of positive squares in only one way, i.e., 739600 + 64 = 860^2 + 8^2 .

It is a congruent number.

It is an unprimeable number.

739664 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23099 + ... + 23130.

It is an arithmetic number, because the mean of its divisors is an integer number (143313).

2⁷³⁹⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

739664 is a deficient number, since it is larger than the sum of its proper divisors (693466).

739664 is a wasteful number, since it uses less digits than its factorization.

739664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46237 (or 46231 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 739664 is about 860.0372084974. The cubic root of 739664 is about 90.4367250998.

It can be divided in two parts, 7396 and 64, that multiplied together give a square (473344 = 688²).

The spelling of 739664 in words is "seven hundred thirty-nine thousand, six hundred sixty-four".