72620065 has 16 divisors (see below), whose sum is σ = 99773568. Its totient is φ = 49706496.

The previous prime is 72620063. The next prime is 72620083. The reversal of 72620065 is 56002627.

It is not a de Polignac number, because 72620065 - 2¹ = 72620063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72620063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22014 + ... + 25096.

It is an arithmetic number, because the mean of its divisors is an integer number (6235848).

Almost surely, 2^72620065 is an apocalyptic number.

It is an amenable number.

72620065 is a deficient number, since it is larger than the sum of its proper divisors (27153503).

72620065 is a wasteful number, since it uses less digits than its factorization.

72620065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 72620065 is about 8521.7407259315. The cubic root of 72620065 is about 417.2076000126.

The spelling of 72620065 in words is "seventy-two million, six hundred twenty thousand, sixty-five".