70913963 has 2 divisors, whose sum is σ = 70913964. Its totient is φ = 70913962.

The previous prime is 70913951. The next prime is 70913977. The reversal of 70913963 is 36931907.

It is a weak prime.

It is an emirp because it is prime and its reverse (36931907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70913963 - 2⁸ = 70913707 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (70913933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35456981 + 35456982.

It is an arithmetic number, because the mean of its divisors is an integer number (35456982).

Almost surely, 2^70913963 is an apocalyptic number.

70913963 is a deficient number, since it is larger than the sum of its proper divisors (1).

70913963 is an equidigital number, since it uses as much as digits as its factorization.

70913963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 70913963 is about 8421.0428689088. The cubic root of 70913963 is about 413.9144474592.

The spelling of 70913963 in words is "seventy million, nine hundred thirteen thousand, nine hundred sixty-three".