84627997 has 2 divisors, whose sum is σ = 84627998. Its totient is φ = 84627996.

The previous prime is 84627973. The next prime is 84628009. The reversal of 84627997 is 79972648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70744921 + 13883076 = 8411^2 + 3726^2 .

It is a cyclic number.

It is not a de Polignac number, because 84627997 - 2¹⁵ = 84595229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84622997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42313998 + 42313999.

It is an arithmetic number, because the mean of its divisors is an integer number (42313999).

Almost surely, 2^84627997 is an apocalyptic number.

It is an amenable number.

84627997 is a deficient number, since it is larger than the sum of its proper divisors (1).

84627997 is an equidigital number, since it uses as much as digits as its factorization.

84627997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 84627997 is about 9199.3476399145. The cubic root of 84627997 is about 439.0406041698.

The spelling of 84627997 in words is "eighty-four million, six hundred twenty-seven thousand, nine hundred ninety-seven".