84625481 has 2 divisors, whose sum is σ = 84625482. Its totient is φ = 84625480.

The previous prime is 84625477. The next prime is 84625493. The reversal of 84625481 is 18452648.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82065481 + 2560000 = 9059^2 + 1600^2 .

It is a cyclic number.

It is not a de Polignac number, because 84625481 - 2² = 84625477 is a prime.

It is a super-2 number, since 2×84625481² = 14322944068962722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84625181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42312740 + 42312741.

It is an arithmetic number, because the mean of its divisors is an integer number (42312741).

Almost surely, 2^84625481 is an apocalyptic number.

It is an amenable number.

84625481 is a deficient number, since it is larger than the sum of its proper divisors (1).

84625481 is an equidigital number, since it uses as much as digits as its factorization.

84625481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61440, while the sum is 38.

The square root of 84625481 is about 9199.2108900710. The cubic root of 84625481 is about 439.0362532176.

The spelling of 84625481 in words is "eighty-four million, six hundred twenty-five thousand, four hundred eighty-one".