84928997 has 2 divisors, whose sum is σ = 84928998. Its totient is φ = 84928996.

The previous prime is 84928969. The next prime is 84929011. The reversal of 84928997 is 79982948.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79316836 + 5612161 = 8906^2 + 2369^2 .

It is a cyclic number.

It is not a de Polignac number, because 84928997 - 2¹⁴ = 84912613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84928927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42464498 + 42464499.

It is an arithmetic number, because the mean of its divisors is an integer number (42464499).

Almost surely, 2^84928997 is an apocalyptic number.

It is an amenable number.

84928997 is a deficient number, since it is larger than the sum of its proper divisors (1).

84928997 is an equidigital number, since it uses as much as digits as its factorization.

84928997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 56.

The square root of 84928997 is about 9215.6929744865. The cubic root of 84928997 is about 439.5605064063.

The spelling of 84928997 in words is "eighty-four million, nine hundred twenty-eight thousand, nine hundred ninety-seven".