83948647 has 2 divisors, whose sum is σ = 83948648. Its totient is φ = 83948646.

The previous prime is 83948629. The next prime is 83948687. The reversal of 83948647 is 74684938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83948647 - 2⁷ = 83948519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83948647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83948617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41974323 + 41974324.

It is an arithmetic number, because the mean of its divisors is an integer number (41974324).

Almost surely, 2^83948647 is an apocalyptic number.

83948647 is a deficient number, since it is larger than the sum of its proper divisors (1).

83948647 is an equidigital number, since it uses as much as digits as its factorization.

83948647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 49.

The square root of 83948647 is about 9162.3494257750. The cubic root of 83948647 is about 437.8626491901.

The spelling of 83948647 in words is "eighty-three million, nine hundred forty-eight thousand, six hundred forty-seven".