70489784 has 16 divisors (see below), whose sum is σ = 136432320. Its totient is φ = 34107840.

The previous prime is 70489777. The next prime is 70489787. The reversal of 70489784 is 48798407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70489787) 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 3 ways as a sum of consecutive naturals, for example, 141869 + ... + 142364.

It is an arithmetic number, because the mean of its divisors is an integer number (8527020).

Almost surely, 2^70489784 is an apocalyptic number.

It is an amenable number.

70489784 is a deficient number, since it is larger than the sum of its proper divisors (65942536).

70489784 is a wasteful number, since it uses less digits than its factorization.

70489784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284270 (or 284266 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 70489784 is about 8395.8194358859. The cubic root of 70489784 is about 413.0875061547.

The spelling of 70489784 in words is "seventy million, four hundred eighty-nine thousand, seven hundred eighty-four".