72916351 has 4 divisors (see below), whose sum is σ = 73298304. Its totient is φ = 72534400.

The previous prime is 72916339. The next prime is 72916367. The reversal of 72916351 is 15361927.

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 72916351 - 2¹³ = 72908159 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 (72916331) 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, 190690 + ... + 191071.

It is an arithmetic number, because the mean of its divisors is an integer number (18324576).

Almost surely, 2^72916351 is an apocalyptic number.

72916351 is a deficient number, since it is larger than the sum of its proper divisors (381953).

72916351 is a wasteful number, since it uses less digits than its factorization.

72916351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381952.

The product of its digits is 11340, while the sum is 34.

The square root of 72916351 is about 8539.1071547323. The cubic root of 72916351 is about 417.7742250439.

The spelling of 72916351 in words is "seventy-two million, nine hundred sixteen thousand, three hundred fifty-one".