70539727 has 4 divisors (see below), whose sum is σ = 70590520. Its totient is φ = 70488936.

The previous prime is 70539673. The next prime is 70539739. The reversal of 70539727 is 72793507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72793507 = 17 ⋅4281971.

It is a cyclic number.

It is not a de Polignac number, because 70539727 - 2¹⁵ = 70506959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70539727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70539757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23253 + ... + 26110.

It is an arithmetic number, because the mean of its divisors is an integer number (17647630).

Almost surely, 2^70539727 is an apocalyptic number.

70539727 is a deficient number, since it is larger than the sum of its proper divisors (50793).

70539727 is a wasteful number, since it uses less digits than its factorization.

70539727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50792.

The product of its (nonzero) digits is 92610, while the sum is 40.

The square root of 70539727 is about 8398.7931871192. The cubic root of 70539727 is about 413.1850425524.

The spelling of 70539727 in words is "seventy million, five hundred thirty-nine thousand, seven hundred twenty-seven".