70937291 has 2 divisors, whose sum is σ = 70937292. Its totient is φ = 70937290.

The previous prime is 70937287. The next prime is 70937299. The reversal of 70937291 is 19273907.

It is a weak prime.

It is an emirp because it is prime and its reverse (19273907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70937291 - 2² = 70937287 is a prime.

It is not a weakly prime, because it can be changed into another prime (70937299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35468645 + 35468646.

It is an arithmetic number, because the mean of its divisors is an integer number (35468646).

Almost surely, 2^70937291 is an apocalyptic number.

70937291 is a deficient number, since it is larger than the sum of its proper divisors (1).

70937291 is an equidigital number, since it uses as much as digits as its factorization.

70937291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 70937291 is about 8422.4278566219. The cubic root of 70937291 is about 413.9598298597.

The spelling of 70937291 in words is "seventy million, nine hundred thirty-seven thousand, two hundred ninety-one".