72006610 has 16 divisors (see below), whose sum is σ = 139582296. Its totient is φ = 26587008.

The previous prime is 72006593. The next prime is 72006617. The reversal of 72006610 is 1660027.

It can be written as a sum of positive squares in 4 ways, for example, as 66048129 + 5958481 = 8127^2 + 2441^2 .

It is not an unprimeable number, because it can be changed into a prime (72006617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276819 + ... + 277078.

Almost surely, 2^72006610 is an apocalyptic number.

72006610 is a deficient number, since it is larger than the sum of its proper divisors (67575686).

72006610 is a wasteful number, since it uses less digits than its factorization.

72006610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553917.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 72006610 is about 8485.6708632848. The cubic root of 72006610 is about 416.0294951042.

Adding to 72006610 its reverse (1660027), we get a palindrome (73666637).

The spelling of 72006610 in words is "seventy-two million, six thousand, six hundred ten".