70240727 has 4 divisors (see below), whose sum is σ = 70490976. Its totient is φ = 69990480.

The previous prime is 70240721. The next prime is 70240757. The reversal of 70240727 is 72704207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72704207 = 31 ⋅2345297.

It is a cyclic number.

It is not a de Polignac number, because 70240727 - 2⁴ = 70240711 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 70240727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70240721) 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, 124703 + ... + 125264.

It is an arithmetic number, because the mean of its divisors is an integer number (17622744).

Almost surely, 2^70240727 is an apocalyptic number.

70240727 is a deficient number, since it is larger than the sum of its proper divisors (250249).

70240727 is a wasteful number, since it uses less digits than its factorization.

70240727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250248.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 70240727 is about 8380.9741080617. The cubic root of 70240727 is about 412.6004202407.

The spelling of 70240727 in words is "seventy million, two hundred forty thousand, seven hundred twenty-seven".