7640325 has 120 divisors (see below), whose sum is σ = 18004800. Its totient is φ = 3175200.

The previous prime is 7640287. The next prime is 7640329. The reversal of 7640325 is 5230467.

It is a happy number.

It is not a de Polignac number, because 7640325 - 2⁸ = 7640069 is a prime.

It is a super-2 number, since 2×7640325² = 116749132211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640329) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 694570 + ... + 694580.

It is an arithmetic number, because the mean of its divisors is an integer number (150040).

Almost surely, 2^7640325 is an apocalyptic number.

7640325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7640325 is an abundant number, since it is smaller than the sum of its proper divisors (10364475).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7640325 is a wasteful number, since it uses less digits than its factorization.

7640325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 7640325 is about 2764.1137820285. The cubic root of 7640325 is about 196.9566328135.

It can be divided in two parts, 76 and 40325, that added together give a square (40401 = 201²).

The spelling of 7640325 in words is "seven million, six hundred forty thousand, three hundred twenty-five".