970233661 has 2 divisors, whose sum is σ = 970233662. Its totient is φ = 970233660.

The previous prime is 970233659. The next prime is 970233683. The reversal of 970233661 is 166332079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 577440900 + 392792761 = 24030^2 + 19819^2 .

It is a cyclic number.

It is not a de Polignac number, because 970233661 - 2¹ = 970233659 is a prime.

Together with 970233659, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 970233661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (970230661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485116830 + 485116831.

It is an arithmetic number, because the mean of its divisors is an integer number (485116831).

Almost surely, 2^970233661 is an apocalyptic number.

It is an amenable number.

970233661 is a deficient number, since it is larger than the sum of its proper divisors (1).

970233661 is an equidigital number, since it uses as much as digits as its factorization.

970233661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 970233661 is about 31148.5739802001. The cubic root of 970233661 is about 989.9777776191.

The spelling of 970233661 in words is "nine hundred seventy million, two hundred thirty-three thousand, six hundred sixty-one".