84510945 has 40 divisors (see below), whose sum is σ = 153679680. Its totient is φ = 44422560.

The previous prime is 84510941. The next prime is 84510949. The reversal of 84510945 is 54901548.

It is an interprime number because it is at equal distance from previous prime (84510941) and next prime (84510949).

It is not a de Polignac number, because 84510945 - 2² = 84510941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84510941) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27286 + ... + 30224.

It is an arithmetic number, because the mean of its divisors is an integer number (3841992).

Almost surely, 2^84510945 is an apocalyptic number.

It is an amenable number.

84510945 is a deficient number, since it is larger than the sum of its proper divisors (69168735).

84510945 is a wasteful number, since it uses less digits than its factorization.

84510945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 84510945 is about 9192.9834656655. The cubic root of 84510945 is about 438.8380932032.

The spelling of 84510945 in words is "eighty-four million, five hundred ten thousand, nine hundred forty-five".