9012649 has 4 divisors (see below), whose sum is σ = 9323460. Its totient is φ = 8701840.

The previous prime is 9012637. The next prime is 9012659. The reversal of 9012649 is 9462109.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9462109 = 1481 ⋅6389.

It can be written as a sum of positive squares in 2 ways, for example, as 6594624 + 2418025 = 2568^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 9012649 - 2⁵ = 9012617 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9012649.

It is not an unprimeable number, because it can be changed into a prime (9012629) 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, 155362 + ... + 155419.

It is an arithmetic number, because the mean of its divisors is an integer number (2330865).

Almost surely, 2^9012649 is an apocalyptic number.

It is an amenable number.

9012649 is a deficient number, since it is larger than the sum of its proper divisors (310811).

9012649 is a wasteful number, since it uses less digits than its factorization.

9012649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310810.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 9012649 is about 3002.1074264590. The cubic root of 9012649 is about 208.1057847633.

The spelling of 9012649 in words is "nine million, twelve thousand, six hundred forty-nine".