72386497 has 4 divisors (see below), whose sum is σ = 75533760. Its totient is φ = 69239236.

The previous prime is 72386491. The next prime is 72386513. The reversal of 72386497 is 79468327.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72386497 - 2¹¹ = 72384449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72386491) 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, 1573597 + ... + 1573642.

It is an arithmetic number, because the mean of its divisors is an integer number (18883440).

Almost surely, 2^72386497 is an apocalyptic number.

It is an amenable number.

72386497 is a deficient number, since it is larger than the sum of its proper divisors (3147263).

72386497 is a wasteful number, since it uses less digits than its factorization.

72386497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147262.

The product of its digits is 508032, while the sum is 46.

The square root of 72386497 is about 8508.0254466004. The cubic root of 72386497 is about 416.7598311851.

The spelling of 72386497 in words is "seventy-two million, three hundred eighty-six thousand, four hundred ninety-seven".