72916103 has 4 divisors (see below), whose sum is σ = 78525048. Its totient is φ = 67307160.

The previous prime is 72916099. The next prime is 72916117. The reversal of 72916103 is 30161927.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72916103 - 2² = 72916099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72916133) 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, 2804453 + ... + 2804478.

It is an arithmetic number, because the mean of its divisors is an integer number (19631262).

Almost surely, 2^72916103 is an apocalyptic number.

72916103 is a deficient number, since it is larger than the sum of its proper divisors (5608945).

72916103 is a wasteful number, since it uses less digits than its factorization.

72916103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608944.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 72916103 is about 8539.0926332954. The cubic root of 72916103 is about 417.7737514047.

The spelling of 72916103 in words is "seventy-two million, nine hundred sixteen thousand, one hundred three".