72353903 has 8 divisors (see below), whose sum is σ = 73577088. Its totient is φ = 71135064.

The previous prime is 72353891. The next prime is 72353917. The reversal of 72353903 is 30935327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72353903 - 2¹⁰ = 72352879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72353903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72353923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58550 + ... + 59772.

It is an arithmetic number, because the mean of its divisors is an integer number (9197136).

Almost surely, 2^72353903 is an apocalyptic number.

72353903 is a deficient number, since it is larger than the sum of its proper divisors (1223185).

72353903 is a wasteful number, since it uses less digits than its factorization.

72353903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173.

The product of its (nonzero) digits is 17010, while the sum is 32.

The square root of 72353903 is about 8506.1097453536. The cubic root of 72353903 is about 416.6972692901.

The spelling of 72353903 in words is "seventy-two million, three hundred fifty-three thousand, nine hundred three".