70906349 has 2 divisors, whose sum is σ = 70906350. Its totient is φ = 70906348.

The previous prime is 70906313. The next prime is 70906357. The reversal of 70906349 is 94360907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60062500 + 10843849 = 7750^2 + 3293^2 .

It is an emirp because it is prime and its reverse (94360907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70906349 - 2¹² = 70902253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70906369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35453174 + 35453175.

It is an arithmetic number, because the mean of its divisors is an integer number (35453175).

Almost surely, 2^70906349 is an apocalyptic number.

It is an amenable number.

70906349 is a deficient number, since it is larger than the sum of its proper divisors (1).

70906349 is an equidigital number, since it uses as much as digits as its factorization.

70906349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 70906349 is about 8420.5907749991. The cubic root of 70906349 is about 413.8996329935.

The spelling of 70906349 in words is "seventy million, nine hundred six thousand, three hundred forty-nine".