7649605 has 8 divisors (see below), whose sum is σ = 9216792. Its totient is φ = 6094848.

The previous prime is 7649599. The next prime is 7649617. The reversal of 7649605 is 5069467.

It can be written as a sum of positive squares in 4 ways, for example, as 690561 + 6959044 = 831^2 + 2638^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7649605 - 2⁵ = 7649573 is a prime.

It is a super-3 number, since 3×7649605³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1692 + ... + 4261.

It is an arithmetic number, because the mean of its divisors is an integer number (1152099).

Almost surely, 2^7649605 is an apocalyptic number.

It is an amenable number.

7649605 is a deficient number, since it is larger than the sum of its proper divisors (1567187).

7649605 is a wasteful number, since it uses less digits than its factorization.

7649605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 7649605 is about 2765.7919299904. The cubic root of 7649605 is about 197.0363422521.

The spelling of 7649605 in words is "seven million, six hundred forty-nine thousand, six hundred five".