70231963 has 2 divisors, whose sum is σ = 70231964. Its totient is φ = 70231962.

The previous prime is 70231951. The next prime is 70231991. The reversal of 70231963 is 36913207.

It is a weak prime.

It is an emirp because it is prime and its reverse (36913207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70231963 - 2²¹ = 68134811 is a prime.

It is not a weakly prime, because it can be changed into another prime (70231933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35115981 + 35115982.

It is an arithmetic number, because the mean of its divisors is an integer number (35115982).

Almost surely, 2^70231963 is an apocalyptic number.

70231963 is a deficient number, since it is larger than the sum of its proper divisors (1).

70231963 is an equidigital number, since it uses as much as digits as its factorization.

70231963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 70231963 is about 8380.4512408342. The cubic root of 70231963 is about 412.5832593492.

The spelling of 70231963 in words is "seventy million, two hundred thirty-one thousand, nine hundred sixty-three".