70894939 has 2 divisors, whose sum is σ = 70894940. Its totient is φ = 70894938.

The previous prime is 70894907. The next prime is 70894969. The reversal of 70894939 is 93949807.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70894939 - 2⁵ = 70894907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70894892 and 70894901.

It is not a weakly prime, because it can be changed into another prime (70894969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35447469 + 35447470.

It is an arithmetic number, because the mean of its divisors is an integer number (35447470).

Almost surely, 2^70894939 is an apocalyptic number.

70894939 is a deficient number, since it is larger than the sum of its proper divisors (1).

70894939 is an equidigital number, since it uses as much as digits as its factorization.

70894939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 70894939 is about 8419.9132418333. The cubic root of 70894939 is about 413.8774307121.

The spelling of 70894939 in words is "seventy million, eight hundred ninety-four thousand, nine hundred thirty-nine".