70351663 has 2 divisors, whose sum is σ = 70351664. Its totient is φ = 70351662.

The previous prime is 70351657. The next prime is 70351667. The reversal of 70351663 is 36615307.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70351663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70351667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35175831 + 35175832.

It is an arithmetic number, because the mean of its divisors is an integer number (35175832).

Almost surely, 2^70351663 is an apocalyptic number.

70351663 is a deficient number, since it is larger than the sum of its proper divisors (1).

70351663 is an equidigital number, since it uses as much as digits as its factorization.

70351663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 70351663 is about 8387.5898206815. The cubic root of 70351663 is about 412.8175220382.

The spelling of 70351663 in words is "seventy million, three hundred fifty-one thousand, six hundred sixty-three".