70975745 has 8 divisors (see below), whose sum is σ = 86778216. Its totient is φ = 55709056.

The previous prime is 70975741. The next prime is 70975753. The reversal of 70975745 is 54757907.

It can be written as a sum of positive squares in 4 ways, for example, as 1236544 + 69739201 = 1112^2 + 8351^2 .

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 70975745 - 2² = 70975741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70975696 and 70975705.

It is not an unprimeable number, because it can be changed into a prime (70975741) 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, 133652 + ... + 134181.

It is an arithmetic number, because the mean of its divisors is an integer number (10847277).

Almost surely, 2^70975745 is an apocalyptic number.

It is an amenable number.

70975745 is a deficient number, since it is larger than the sum of its proper divisors (15802471).

70975745 is a wasteful number, since it uses less digits than its factorization.

70975745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267891.

The product of its (nonzero) digits is 308700, while the sum is 44.

The square root of 70975745 is about 8424.7103807787. The cubic root of 70975745 is about 414.0346167387.

The spelling of 70975745 in words is "seventy million, nine hundred seventy-five thousand, seven hundred forty-five".