72350257 has 8 divisors (see below), whose sum is σ = 82744256. Its totient is φ = 61970832.

The previous prime is 72350237. The next prime is 72350279. The reversal of 72350257 is 75205327.

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

It is not a de Polignac number, because 72350257 - 2⁷ = 72350129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72350237) 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, 10858 + ... + 16204.

It is an arithmetic number, because the mean of its divisors is an integer number (10343032).

Almost surely, 2^72350257 is an apocalyptic number.

It is an amenable number.

72350257 is a deficient number, since it is larger than the sum of its proper divisors (10393999).

72350257 is a wasteful number, since it uses less digits than its factorization.

72350257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7287.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 72350257 is about 8505.8954261148. The cubic root of 72350257 is about 416.6902698807.

The spelling of 72350257 in words is "seventy-two million, three hundred fifty thousand, two hundred fifty-seven".