84951967 has 2 divisors, whose sum is σ = 84951968. Its totient is φ = 84951966.

The previous prime is 84951953. The next prime is 84951989. The reversal of 84951967 is 76915948.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84951967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84951967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84951947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42475983 + 42475984.

It is an arithmetic number, because the mean of its divisors is an integer number (42475984).

Almost surely, 2^84951967 is an apocalyptic number.

84951967 is a deficient number, since it is larger than the sum of its proper divisors (1).

84951967 is an equidigital number, since it uses as much as digits as its factorization.

84951967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 84951967 is about 9216.9391340076. The cubic root of 84951967 is about 439.6001308576.

The spelling of 84951967 in words is "eighty-four million, nine hundred fifty-one thousand, nine hundred sixty-seven".