82345972 has 6 divisors (see below), whose sum is σ = 144105458. Its totient is φ = 41172984.

The previous prime is 82345897. The next prime is 82345973. The reversal of 82345972 is 27954328.

It can be written as a sum of positive squares in only one way, i.e., 55264356 + 27081616 = 7434^2 + 5204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82345973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10293243 + ... + 10293250.

Almost surely, 2^82345972 is an apocalyptic number.

It is an amenable number.

82345972 is a deficient number, since it is larger than the sum of its proper divisors (61759486).

82345972 is a wasteful number, since it uses less digits than its factorization.

82345972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20586497 (or 20586495 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 82345972 is about 9074.4681386845. The cubic root of 82345972 is about 435.0582949135.

The spelling of 82345972 in words is "eighty-two million, three hundred forty-five thousand, nine hundred seventy-two".