72706466 has 16 divisors (see below), whose sum is σ = 125876160. Its totient is φ = 30850800.

The previous prime is 72706453. The next prime is 72706477. The reversal of 72706466 is 66460727.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24296 + ... + 27123.

It is an arithmetic number, because the mean of its divisors is an integer number (7867260).

Almost surely, 2^72706466 is an apocalyptic number.

72706466 is a deficient number, since it is larger than the sum of its proper divisors (53169694).

72706466 is a wasteful number, since it uses less digits than its factorization.

72706466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51529.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 72706466 is about 8526.8086644418. The cubic root of 72706466 is about 417.3729944637.

The spelling of 72706466 in words is "seventy-two million, seven hundred six thousand, four hundred sixty-six".