709972 has 6 divisors (see below), whose sum is σ = 1242458. Its totient is φ = 354984.

The previous prime is 709967. The next prime is 709981. The reversal of 709972 is 279907.

709972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 391876 + 318096 = 626^2 + 564^2 .

It is a congruent number.

It is an unprimeable number.

709972 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, 88743 + ... + 88750.

2⁷⁰⁹⁹⁷² is an apocalyptic number.

It is an amenable number.

709972 is a deficient number, since it is larger than the sum of its proper divisors (532486).

709972 is a wasteful number, since it uses less digits than its factorization.

709972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177497 (or 177495 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 709972 is about 842.5983622106. The cubic root of 709972 is about 89.2100412996.

It can be divided in two parts, 709 and 972, that added together give a square (1681 = 41²).

The spelling of 709972 in words is "seven hundred nine thousand, nine hundred seventy-two".