8612649 has 36 divisors (see below), whose sum is σ = 13687856. Its totient is φ = 5410152.

The previous prime is 8612641. The next prime is 8612657. The reversal of 8612649 is 9462168.

8612649 is a `hidden beast` number, since 8 + 6 + 1 + 2 + 649 = 666.

It is an interprime number because it is at equal distance from previous prime (8612641) and next prime (8612657).

It is not a de Polignac number, because 8612649 - 2³ = 8612641 is a prime.

It is a Duffinian number.

Its product of digits (20736) is a multiple of the sum of its prime factors (128).

It is not an unprimeable number, because it can be changed into a prime (8612641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128514 + ... + 128580.

Almost surely, 2^8612649 is an apocalyptic number.

It is an amenable number.

8612649 is a deficient number, since it is larger than the sum of its proper divisors (5075207).

8612649 is an equidigital number, since it uses as much as digits as its factorization.

8612649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 93 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 8612649 is about 2934.7315039029. The cubic root of 8612649 is about 204.9803590146.

It can be divided in two parts, 8612 and 649, that added together give a cube (9261 = 21³).

The spelling of 8612649 in words is "eight million, six hundred twelve thousand, six hundred forty-nine".