70938253 has 2 divisors, whose sum is σ = 70938254. Its totient is φ = 70938252.

The previous prime is 70938247. The next prime is 70938271. The reversal of 70938253 is 35283907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66536649 + 4401604 = 8157^2 + 2098^2 .

It is an emirp because it is prime and its reverse (35283907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70938253 - 2²⁵ = 37383821 is a prime.

It is equal to p_4169962 and since 70938253 and 4169962 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70938223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35469126 + 35469127.

It is an arithmetic number, because the mean of its divisors is an integer number (35469127).

Almost surely, 2^70938253 is an apocalyptic number.

It is an amenable number.

70938253 is a deficient number, since it is larger than the sum of its proper divisors (1).

70938253 is an equidigital number, since it uses as much as digits as its factorization.

70938253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 70938253 is about 8422.4849658518. The cubic root of 70938253 is about 413.9617011254.

The spelling of 70938253 in words is "seventy million, nine hundred thirty-eight thousand, two hundred fifty-three".