84711397 has 2 divisors, whose sum is σ = 84711398. Its totient is φ = 84711396.

The previous prime is 84711337. The next prime is 84711401. The reversal of 84711397 is 79311748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80389156 + 4322241 = 8966^2 + 2079^2 .

It is a cyclic number.

It is not a de Polignac number, because 84711397 - 2¹¹ = 84709349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84711337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42355698 + 42355699.

It is an arithmetic number, because the mean of its divisors is an integer number (42355699).

Almost surely, 2^84711397 is an apocalyptic number.

It is an amenable number.

84711397 is a deficient number, since it is larger than the sum of its proper divisors (1).

84711397 is an equidigital number, since it uses as much as digits as its factorization.

84711397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 40.

The square root of 84711397 is about 9203.8794537956. The cubic root of 84711397 is about 439.1847801164.

The spelling of 84711397 in words is "eighty-four million, seven hundred eleven thousand, three hundred ninety-seven".