7649069 has 4 divisors (see below), whose sum is σ = 7912860. Its totient is φ = 7385280.

The previous prime is 7649063. The next prime is 7649071. The reversal of 7649069 is 9609467.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4182025 + 3467044 = 2045^2 + 1862^2 .

It is a cyclic number.

It is not a de Polignac number, because 7649069 - 2⁸ = 7648813 is a prime.

It is a super-2 number, since 2×7649069² = 117016513133522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7649063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131852 + ... + 131909.

It is an arithmetic number, because the mean of its divisors is an integer number (1978215).

Almost surely, 2^7649069 is an apocalyptic number.

It is an amenable number.

7649069 is a deficient number, since it is larger than the sum of its proper divisors (263791).

7649069 is a wasteful number, since it uses less digits than its factorization.

7649069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263790.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 7649069 is about 2765.6950301868. The cubic root of 7649069 is about 197.0317400996.

The spelling of 7649069 in words is "seven million, six hundred forty-nine thousand, sixty-nine".