72378595 has 4 divisors (see below), whose sum is σ = 86854320. Its totient is φ = 57902872.

The previous prime is 72378563. The next prime is 72378599. The reversal of 72378595 is 59587327.

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 72378595 - 2⁵ = 72378563 is a prime.

It is a super-2 number, since 2×72378595² = 10477322028348050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72378599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7237855 + ... + 7237864.

It is an arithmetic number, because the mean of its divisors is an integer number (21713580).

Almost surely, 2^72378595 is an apocalyptic number.

72378595 is a deficient number, since it is larger than the sum of its proper divisors (14475725).

72378595 is a wasteful number, since it uses less digits than its factorization.

72378595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475724.

The product of its digits is 529200, while the sum is 46.

The square root of 72378595 is about 8507.5610488553. The cubic root of 72378595 is about 416.7446655757.

The spelling of 72378595 in words is "seventy-two million, three hundred seventy-eight thousand, five hundred ninety-five".