7872951 has 4 divisors (see below), whose sum is σ = 10497272. Its totient is φ = 5248632.

The previous prime is 7872947. The next prime is 7873001. The reversal of 7872951 is 1592787.

7872951 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7872951 - 2² = 7872947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7873951) 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, 1312156 + ... + 1312161.

It is an arithmetic number, because the mean of its divisors is an integer number (2624318).

Almost surely, 2^7872951 is an apocalyptic number.

7872951 is a deficient number, since it is larger than the sum of its proper divisors (2624321).

7872951 is a wasteful number, since it uses less digits than its factorization.

7872951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624320.

The product of its digits is 35280, while the sum is 39.

The square root of 7872951 is about 2805.8779374734. The cubic root of 7872951 is about 198.9356036849.

The spelling of 7872951 in words is "seven million, eight hundred seventy-two thousand, nine hundred fifty-one".