7649725 has 12 divisors (see below), whose sum is σ = 9629344. Its totient is φ = 6027120.

The previous prime is 7649693. The next prime is 7649737. The reversal of 7649725 is 5279467.

It is not a de Polignac number, because 7649725 - 2⁵ = 7649693 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

7649725 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609 + ... + 3958.

Almost surely, 2^7649725 is an apocalyptic number.

It is an amenable number.

7649725 is a deficient number, since it is larger than the sum of its proper divisors (1979619).

7649725 is a wasteful number, since it uses less digits than its factorization.

7649725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644 (or 4639 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 7649725 is about 2765.8136235112. The cubic root of 7649725 is about 197.0373725553.

The spelling of 7649725 in words is "seven million, six hundred forty-nine thousand, seven hundred twenty-five".