84197537 has 2 divisors, whose sum is σ = 84197538. Its totient is φ = 84197536.

The previous prime is 84197473. The next prime is 84197557. The reversal of 84197537 is 73579148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46730896 + 37466641 = 6836^2 + 6121^2 .

It is a cyclic number.

It is not a de Polignac number, because 84197537 - 2⁶ = 84197473 is a prime.

It is not a weakly prime, because it can be changed into another prime (84197557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42098768 + 42098769.

It is an arithmetic number, because the mean of its divisors is an integer number (42098769).

Almost surely, 2^84197537 is an apocalyptic number.

It is an amenable number.

84197537 is a deficient number, since it is larger than the sum of its proper divisors (1).

84197537 is an equidigital number, since it uses as much as digits as its factorization.

84197537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 84197537 is about 9175.9215885926. The cubic root of 84197537 is about 438.2949456600.

The spelling of 84197537 in words is "eighty-four million, one hundred ninety-seven thousand, five hundred thirty-seven".