70737745 has 8 divisors (see below), whose sum is σ = 91415016. Its totient is φ = 52237056.

The previous prime is 70737743. The next prime is 70737749. The reversal of 70737745 is 54773707.

It can be written as a sum of positive squares in 4 ways, for example, as 1132096 + 69605649 = 1064^2 + 8343^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70737745 - 2¹ = 70737743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70737698 and 70737707.

It is not an unprimeable number, because it can be changed into a prime (70737743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544072 + ... + 544201.

It is an arithmetic number, because the mean of its divisors is an integer number (11426877).

Almost surely, 2^70737745 is an apocalyptic number.

It is an amenable number.

70737745 is a deficient number, since it is larger than the sum of its proper divisors (20677271).

70737745 is a wasteful number, since it uses less digits than its factorization.

70737745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088291.

The product of its (nonzero) digits is 144060, while the sum is 40.

The square root of 70737745 is about 8410.5734049469. The cubic root of 70737745 is about 413.5713101633.

The spelling of 70737745 in words is "seventy million, seven hundred thirty-seven thousand, seven hundred forty-five".