7979625 has 48 divisors (see below), whose sum is σ = 14820624. Its totient is φ = 4128000.

The previous prime is 7979623. The next prime is 7979663. The reversal of 7979625 is 5269797.

It can be written as a sum of positive squares in 8 ways, for example, as 2903616 + 5076009 = 1704^2 + 2253^2 .

It is not a de Polignac number, because 7979625 - 2¹ = 7979623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a d-powerful number, because it can be written as 7² + 9² + 7⁸ + 9⁶ + 6⁸ + 2⁹ + 5⁵ .

It is not an unprimeable number, because it can be changed into a prime (7979623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46039 + ... + 46211.

It is an arithmetic number, because the mean of its divisors is an integer number (308763).

Almost surely, 2^7979625 is an apocalyptic number.

7979625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7979625 is a deficient number, since it is larger than the sum of its proper divisors (6840999).

7979625 is a wasteful number, since it uses less digits than its factorization.

7979625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 222 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 7979625 is about 2824.8230033048. The cubic root of 7979625 is about 199.8300639830.

The spelling of 7979625 in words is "seven million, nine hundred seventy-nine thousand, six hundred twenty-five".