964547971 has 2 divisors, whose sum is σ = 964547972. Its totient is φ = 964547970.

The previous prime is 964547963. The next prime is 964548031. The reversal of 964547971 is 179745469.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 964547971 - 2³ = 964547963 is a prime.

It is not a weakly prime, because it can be changed into another prime (964547951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482273985 + 482273986.

It is an arithmetic number, because the mean of its divisors is an integer number (482273986).

Almost surely, 2^964547971 is an apocalyptic number.

964547971 is a deficient number, since it is larger than the sum of its proper divisors (1).

964547971 is an equidigital number, since it uses as much as digits as its factorization.

964547971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 52.

The square root of 964547971 is about 31057.1726176096. The cubic root of 964547971 is about 988.0401901811.

The spelling of 964547971 in words is "nine hundred sixty-four million, five hundred forty-seven thousand, nine hundred seventy-one".