84748739 has 2 divisors, whose sum is σ = 84748740. Its totient is φ = 84748738.

The previous prime is 84748711. The next prime is 84748777. The reversal of 84748739 is 93784748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84748739 - 2²⁴ = 67971523 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (84748789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42374369 + 42374370.

It is an arithmetic number, because the mean of its divisors is an integer number (42374370).

Almost surely, 2^84748739 is an apocalyptic number.

84748739 is a deficient number, since it is larger than the sum of its proper divisors (1).

84748739 is an equidigital number, since it uses as much as digits as its factorization.

84748739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 50.

The square root of 84748739 is about 9205.9078313874. The cubic root of 84748739 is about 439.2493036219.

The spelling of 84748739 in words is "eighty-four million, seven hundred forty-eight thousand, seven hundred thirty-nine".