70290649 has 12 divisors (see below), whose sum is σ = 83035152. Its totient is φ = 58983600.

The previous prime is 70290643. The next prime is 70290659. The reversal of 70290649 is 94609207.

It is not a de Polignac number, because 70290649 - 2¹¹ = 70288601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70290643) 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 11 ways as a sum of consecutive naturals, for example, 17047 + ... + 20764.

It is an arithmetic number, because the mean of its divisors is an integer number (6919596).

Almost surely, 2^70290649 is an apocalyptic number.

It is an amenable number.

70290649 is a deficient number, since it is larger than the sum of its proper divisors (12744503).

70290649 is a wasteful number, since it uses less digits than its factorization.

70290649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37848 (or 37835 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 70290649 is about 8383.9518724764. The cubic root of 70290649 is about 412.6981458821.

The spelling of 70290649 in words is "seventy million, two hundred ninety thousand, six hundred forty-nine".