70938247 has 2 divisors, whose sum is σ = 70938248. Its totient is φ = 70938246.

The previous prime is 70938227. The next prime is 70938253. The reversal of 70938247 is 74283907.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70938247 - 2²³ = 62549639 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70938227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35469123 + 35469124.

It is an arithmetic number, because the mean of its divisors is an integer number (35469124).

Almost surely, 2^70938247 is an apocalyptic number.

70938247 is a deficient number, since it is larger than the sum of its proper divisors (1).

70938247 is an equidigital number, since it uses as much as digits as its factorization.

70938247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 70938247 is about 8422.4846096624. The cubic root of 70938247 is about 413.9616894544.

The spelling of 70938247 in words is "seventy million, nine hundred thirty-eight thousand, two hundred forty-seven".