7872646 has 8 divisors (see below), whose sum is σ = 11837664. Its totient is φ = 3926760.

The previous prime is 7872643. The next prime is 7872653. The reversal of 7872646 is 6462787.

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

It is a junction number, because it is equal to n+sod(n) for n = 7872599 and 7872608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872643) 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, 3705 + ... + 5428.

It is an arithmetic number, because the mean of its divisors is an integer number (1479708).

Almost surely, 2^7872646 is an apocalyptic number.

7872646 is a deficient number, since it is larger than the sum of its proper divisors (3965018).

7872646 is a wasteful number, since it uses less digits than its factorization.

7872646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9566.

The product of its digits is 112896, while the sum is 40.

The square root of 7872646 is about 2805.8235867567. The cubic root of 7872646 is about 198.9330347141.

The spelling of 7872646 in words is "seven million, eight hundred seventy-two thousand, six hundred forty-six".