70539379 has 2 divisors, whose sum is σ = 70539380. Its totient is φ = 70539378.

The previous prime is 70539361. The next prime is 70539401. The reversal of 70539379 is 97393507.

It is a weak prime.

It is an emirp because it is prime and its reverse (97393507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70539379 - 2⁵ = 70539347 is a prime.

It is not a weakly prime, because it can be changed into another prime (70539319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35269689 + 35269690.

It is an arithmetic number, because the mean of its divisors is an integer number (35269690).

Almost surely, 2^70539379 is an apocalyptic number.

70539379 is a deficient number, since it is larger than the sum of its proper divisors (1).

70539379 is an equidigital number, since it uses as much as digits as its factorization.

70539379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 178605, while the sum is 43.

The square root of 70539379 is about 8398.7724698315. The cubic root of 70539379 is about 413.1843630836.

The spelling of 70539379 in words is "seventy million, five hundred thirty-nine thousand, three hundred seventy-nine".