7978652 has 24 divisors (see below), whose sum is σ = 15346800. Its totient is φ = 3599360.

The previous prime is 7978639. The next prime is 7978657. The reversal of 7978652 is 2568797.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7978657) 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, 5948 + ... + 7164.

It is an arithmetic number, because the mean of its divisors is an integer number (639450).

Almost surely, 2^7978652 is an apocalyptic number.

It is an amenable number.

7978652 is a deficient number, since it is larger than the sum of its proper divisors (7368148).

7978652 is a wasteful number, since it uses less digits than its factorization.

7978652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381 (or 1379 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 7978652 is about 2824.6507748747. The cubic root of 7978652 is about 199.8219415229.

It can be divided in two parts, 797 and 8652, that added together give a palindrome (9449).

The spelling of 7978652 in words is "seven million, nine hundred seventy-eight thousand, six hundred fifty-two".