70894547 has 4 divisors (see below), whose sum is σ = 70927536. Its totient is φ = 70861560.

The previous prime is 70894541. The next prime is 70894559. The reversal of 70894547 is 74549807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74549807 = 29 ⋅2570683.

It is a cyclic number.

It is not a de Polignac number, because 70894547 - 2¹² = 70890451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70894498 and 70894507.

It is not an unprimeable number, because it can be changed into a prime (70894541) 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, 13028 + ... + 17649.

It is an arithmetic number, because the mean of its divisors is an integer number (17731884).

Almost surely, 2^70894547 is an apocalyptic number.

70894547 is a deficient number, since it is larger than the sum of its proper divisors (32989).

70894547 is a wasteful number, since it uses less digits than its factorization.

70894547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32988.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 70894547 is about 8419.8899636515. The cubic root of 70894547 is about 413.8766678920.

The spelling of 70894547 in words is "seventy million, eight hundred ninety-four thousand, five hundred forty-seven".