70920361 has 2 divisors, whose sum is σ = 70920362. Its totient is φ = 70920360.

The previous prime is 70920329. The next prime is 70920383. The reversal of 70920361 is 16302907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59059225 + 11861136 = 7685^2 + 3444^2 .

It is a cyclic number.

It is not a de Polignac number, because 70920361 - 2⁵ = 70920329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70920961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35460180 + 35460181.

It is an arithmetic number, because the mean of its divisors is an integer number (35460181).

Almost surely, 2^70920361 is an apocalyptic number.

It is an amenable number.

70920361 is a deficient number, since it is larger than the sum of its proper divisors (1).

70920361 is an equidigital number, since it uses as much as digits as its factorization.

70920361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 70920361 is about 8421.4227420312. The cubic root of 70920361 is about 413.9268951488.

The spelling of 70920361 in words is "seventy million, nine hundred twenty thousand, three hundred sixty-one".