70616839 has 2 divisors, whose sum is σ = 70616840. Its totient is φ = 70616838.

The previous prime is 70616837. The next prime is 70616857. The reversal of 70616839 is 93861607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70616839 - 2¹ = 70616837 is a prime.

Together with 70616837, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70616837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35308419 + 35308420.

It is an arithmetic number, because the mean of its divisors is an integer number (35308420).

Almost surely, 2^70616839 is an apocalyptic number.

70616839 is a deficient number, since it is larger than the sum of its proper divisors (1).

70616839 is an equidigital number, since it uses as much as digits as its factorization.

70616839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 70616839 is about 8403.3825927420. The cubic root of 70616839 is about 413.3355483897.

The spelling of 70616839 in words is "seventy million, six hundred sixteen thousand, eight hundred thirty-nine".