72000107 has 4 divisors (see below), whose sum is σ = 72028896. Its totient is φ = 71971320.

The previous prime is 72000091. The next prime is 72000109. The reversal of 72000107 is 70100027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70100027 = 17 ⋅4123531.

It is a cyclic number.

It is not a de Polignac number, because 72000107 - 2⁴ = 72000091 is a prime.

It is a super-2 number, since 2×72000107² = 10368030816022898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72000109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10244 + ... + 15777.

It is an arithmetic number, because the mean of its divisors is an integer number (18007224).

Almost surely, 2^72000107 is an apocalyptic number.

72000107 is a deficient number, since it is larger than the sum of its proper divisors (28789).

72000107 is a wasteful number, since it uses less digits than its factorization.

72000107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28788.

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 72000107 is about 8485.2876792717. The cubic root of 72000107 is about 416.0169706927.

The spelling of 72000107 in words is "seventy-two million, one hundred seven", and thus it is an aban number.