70930997 has 2 divisors, whose sum is σ = 70930998. Its totient is φ = 70930996.

The previous prime is 70930973. The next prime is 70930999. The reversal of 70930997 is 79903907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50779876 + 20151121 = 7126^2 + 4489^2 .

It is an emirp because it is prime and its reverse (79903907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70930997 - 2²² = 66736693 is a prime.

Together with 70930999, 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 (70930999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35465498 + 35465499.

It is an arithmetic number, because the mean of its divisors is an integer number (35465499).

Almost surely, 2^70930997 is an apocalyptic number.

It is an amenable number.

70930997 is a deficient number, since it is larger than the sum of its proper divisors (1).

70930997 is an equidigital number, since it uses as much as digits as its factorization.

70930997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107163, while the sum is 44.

The square root of 70930997 is about 8422.0542031027. The cubic root of 70930997 is about 413.9475864628.

The spelling of 70930997 in words is "seventy million, nine hundred thirty thousand, nine hundred ninety-seven".