72378337 has 8 divisors (see below), whose sum is σ = 73923840. Its totient is φ = 70839600.

The previous prime is 72378329. The next prime is 72378347. The reversal of 72378337 is 73387327.

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 72378337 - 2³ = 72378329 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 72378337.

It is not an unprimeable number, because it can be changed into a prime (72378307) 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, 23962 + ... + 26812.

It is an arithmetic number, because the mean of its divisors is an integer number (9240480).

Almost surely, 2^72378337 is an apocalyptic number.

It is an amenable number.

72378337 is a deficient number, since it is larger than the sum of its proper divisors (1545503).

72378337 is a wasteful number, since it uses less digits than its factorization.

72378337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

The product of its digits is 148176, while the sum is 40.

The square root of 72378337 is about 8507.5458858592. The cubic root of 72378337 is about 416.7441704005.

The spelling of 72378337 in words is "seventy-two million, three hundred seventy-eight thousand, three hundred thirty-seven".