70646849 has 16 divisors (see below), whose sum is σ = 92066688. Its totient is φ = 52607232.

The previous prime is 70646839. The next prime is 70646897. The reversal of 70646849 is 94864607.

It is a cyclic number.

It is not a de Polignac number, because 70646849 - 2⁴ = 70646833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70646819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21287 + ... + 24380.

It is an arithmetic number, because the mean of its divisors is an integer number (5754168).

Almost surely, 2^70646849 is an apocalyptic number.

It is an amenable number.

70646849 is a deficient number, since it is larger than the sum of its proper divisors (21419839).

70646849 is a wasteful number, since it uses less digits than its factorization.

70646849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45704.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 70646849 is about 8405.1679935621. The cubic root of 70646849 is about 413.3940917591.

The spelling of 70646849 in words is "seventy million, six hundred forty-six thousand, eight hundred forty-nine".