70949643 has 8 divisors (see below), whose sum is σ = 95662800. Its totient is φ = 46768128.

The previous prime is 70949623. The next prime is 70949701. The reversal of 70949643 is 34694907.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70949643 - 2⁵ = 70949611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70949595 and 70949604.

It is not an unprimeable number, because it can be changed into a prime (70949623) 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, 132598 + ... + 133131.

It is an arithmetic number, because the mean of its divisors is an integer number (11957850).

Almost surely, 2^70949643 is an apocalyptic number.

70949643 is a deficient number, since it is larger than the sum of its proper divisors (24713157).

70949643 is a wasteful number, since it uses less digits than its factorization.

70949643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265821.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 70949643 is about 8423.1611049534. The cubic root of 70949643 is about 413.9838554698.

The spelling of 70949643 in words is "seventy million, nine hundred forty-nine thousand, six hundred forty-three".