70943646 has 16 divisors (see below), whose sum is σ = 142136064. Its totient is φ = 23606424.

The previous prime is 70943611. The next prime is 70943647. The reversal of 70943646 is 64634907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70943647) 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 7 ways as a sum of consecutive naturals, for example, 6550 + ... + 13593.

It is an arithmetic number, because the mean of its divisors is an integer number (8883504).

Almost surely, 2^70943646 is an apocalyptic number.

70943646 is an abundant number, since it is smaller than the sum of its proper divisors (71192418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70943646 is a wasteful number, since it uses less digits than its factorization.

70943646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20735.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 70943646 is about 8422.8051146871. The cubic root of 70943646 is about 413.9721911821.

The spelling of 70943646 in words is "seventy million, nine hundred forty-three thousand, six hundred forty-six".