70744727 has 4 divisors (see below), whose sum is σ = 70887000. Its totient is φ = 70602456.

The previous prime is 70744693. The next prime is 70744747. The reversal of 70744727 is 72744707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72744707 = 7 ⋅10392101.

It is a cyclic number.

It is not a de Polignac number, because 70744727 - 2¹⁰ = 70743703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70744747) 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, 70388 + ... + 71385.

It is an arithmetic number, because the mean of its divisors is an integer number (17721750).

Almost surely, 2^70744727 is an apocalyptic number.

70744727 is a deficient number, since it is larger than the sum of its proper divisors (142273).

70744727 is a wasteful number, since it uses less digits than its factorization.

70744727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142272.

The product of its (nonzero) digits is 76832, while the sum is 38.

The square root of 70744727 is about 8410.9884674752. The cubic root of 70744727 is about 413.5849165715.

The spelling of 70744727 in words is "seventy million, seven hundred forty-four thousand, seven hundred twenty-seven".