972611 has 2 divisors, whose sum is σ = 972612. Its totient is φ = 972610.

The previous prime is 972599. The next prime is 972613. The reversal of 972611 is 116279.

It is a strong prime.

It is an emirp because it is prime and its reverse (116279) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972611 is a prime.

Together with 972613, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₇₆₅₅₃ and since 972611 and 76553 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (972613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486305 + 486306.

It is an arithmetic number, because the mean of its divisors is an integer number (486306).

2⁹⁷²⁶¹¹ is an apocalyptic number.

972611 is a deficient number, since it is larger than the sum of its proper divisors (1).

972611 is an equidigital number, since it uses as much as digits as its factorization.

972611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 26.

The square root of 972611 is about 986.2104237940. The cubic root of 972611 is about 99.0785690612.

The spelling of 972611 in words is "nine hundred seventy-two thousand, six hundred eleven".