70739530 has 16 divisors (see below), whose sum is σ = 128096640. Its totient is φ = 28125712.

The previous prime is 70739479. The next prime is 70739531. The reversal of 70739530 is 3593707.

It is a super-2 number, since 2×70739530² = 10008162209241800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70739531) 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, 19510 + ... + 22849.

It is an arithmetic number, because the mean of its divisors is an integer number (8006040).

Almost surely, 2^70739530 is an apocalyptic number.

70739530 is a deficient number, since it is larger than the sum of its proper divisors (57357110).

70739530 is a wasteful number, since it uses less digits than its factorization.

70739530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42533.

The product of its (nonzero) digits is 19845, while the sum is 34.

The square root of 70739530 is about 8410.6795207046. The cubic root of 70739530 is about 413.5747888275.

It can be divided in two parts, 70 and 739530, that added together give a square (739600 = 860²).

The spelling of 70739530 in words is "seventy million, seven hundred thirty-nine thousand, five hundred thirty".