72710072 has 8 divisors (see below), whose sum is σ = 136331400. Its totient is φ = 36355032.

The previous prime is 72710041. The next prime is 72710083. The reversal of 72710072 is 27001727.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4544372 + ... + 4544387.

It is an arithmetic number, because the mean of its divisors is an integer number (17041425).

Almost surely, 2^72710072 is an apocalyptic number.

It is an amenable number.

72710072 is a deficient number, since it is larger than the sum of its proper divisors (63621328).

72710072 is a wasteful number, since it uses less digits than its factorization.

72710072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088765 (or 9088761 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 72710072 is about 8527.0201125598. The cubic root of 72710072 is about 417.3798944559.

Adding to 72710072 its reverse (27001727), we get a palindrome (99711799).

The spelling of 72710072 in words is "seventy-two million, seven hundred ten thousand, seventy-two".