84152477 has 2 divisors, whose sum is σ = 84152478. Its totient is φ = 84152476.

The previous prime is 84152473. The next prime is 84152491. The reversal of 84152477 is 77425148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69322276 + 14830201 = 8326^2 + 3851^2 .

It is a cyclic number.

It is not a de Polignac number, because 84152477 - 2² = 84152473 is a prime.

It is a Chen prime.

It is equal to p_4897424 and since 84152477 and 4897424 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84152477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84152473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42076238 + 42076239.

It is an arithmetic number, because the mean of its divisors is an integer number (42076239).

Almost surely, 2^84152477 is an apocalyptic number.

It is an amenable number.

84152477 is a deficient number, since it is larger than the sum of its proper divisors (1).

84152477 is an equidigital number, since it uses as much as digits as its factorization.

84152477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 38.

The square root of 84152477 is about 9173.4659207957. The cubic root of 84152477 is about 438.2167442655.

The spelling of 84152477 in words is "eighty-four million, one hundred fifty-two thousand, four hundred seventy-seven".