70563907 has 2 divisors, whose sum is σ = 70563908. Its totient is φ = 70563906.

The previous prime is 70563869. The next prime is 70563919. The reversal of 70563907 is 70936507.

It is a strong prime.

It is an emirp because it is prime and its reverse (70936507) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70563907 is a prime.

It is a super-2 number, since 2×70563907² = 9958529942209298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70563937) 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, 35281953 + 35281954.

It is an arithmetic number, because the mean of its divisors is an integer number (35281954).

Almost surely, 2^70563907 is an apocalyptic number.

70563907 is a deficient number, since it is larger than the sum of its proper divisors (1).

70563907 is an equidigital number, since it uses as much as digits as its factorization.

70563907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 70563907 is about 8400.2325563046. The cubic root of 70563907 is about 413.2322484481.

The spelling of 70563907 in words is "seventy million, five hundred sixty-three thousand, nine hundred seven".