8070649 has 4 divisors (see below), whose sum is σ = 8495440. Its totient is φ = 7645860.

The previous prime is 8070637. The next prime is 8070653. The reversal of 8070649 is 9460708.

8070649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8070649 - 2⁵ = 8070617 is a prime.

It is an Ulam number.

It is a Duffinian number.

8070649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8070659) 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, 212367 + ... + 212404.

It is an arithmetic number, because the mean of its divisors is an integer number (2123860).

Almost surely, 2^8070649 is an apocalyptic number.

It is an amenable number.

8070649 is a deficient number, since it is larger than the sum of its proper divisors (424791).

8070649 is a wasteful number, since it uses less digits than its factorization.

8070649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424790.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 8070649 is about 2840.8887693819. Note that the first 3 decimals coincide. The cubic root of 8070649 is about 200.5870170360.

The spelling of 8070649 in words is "eight million, seventy thousand, six hundred forty-nine".