709672 has 16 divisors (see below), whose sum is σ = 1362240. Its totient is φ = 346416.

The previous prime is 709663. The next prime is 709673. The reversal of 709672 is 276907.

It is a happy number.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (709673) 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, 688 + ... + 1375.

It is an arithmetic number, because the mean of its divisors is an integer number (85140).

2⁷⁰⁹⁶⁷² is an apocalyptic number.

709672 is the 688-th pentagonal number.

It is an amenable number.

709672 is a deficient number, since it is larger than the sum of its proper divisors (652568).

709672 is a wasteful number, since it uses less digits than its factorization.

709672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 709672 is about 842.4203226419. The cubic root of 709672 is about 89.1974742392.

The spelling of 709672 in words is "seven hundred nine thousand, six hundred seventy-two".