7872357 has 8 divisors (see below), whose sum is σ = 10835200. Its totient is φ = 5078880.

The previous prime is 7872353. The next prime is 7872367. The reversal of 7872357 is 7532787.

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

It is not a de Polignac number, because 7872357 - 2² = 7872353 is a prime.

It is a d-powerful number, because it can be written as 7³ + 8⁷ + 7³ + 2⁵ + 3⁸ + 5⁵ + 7⁸ .

It is a Duffinian number.

7872357 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42232 + ... + 42417.

It is an arithmetic number, because the mean of its divisors is an integer number (1354400).

Almost surely, 2^7872357 is an apocalyptic number.

It is an amenable number.

7872357 is a deficient number, since it is larger than the sum of its proper divisors (2962843).

7872357 is a wasteful number, since it uses less digits than its factorization.

7872357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84683.

The product of its digits is 82320, while the sum is 39.

The square root of 7872357 is about 2805.7720862536. The cubic root of 7872357 is about 198.9306004478.

The spelling of 7872357 in words is "seven million, eight hundred seventy-two thousand, three hundred fifty-seven".