84972501 has 6 divisors (see below), whose sum is σ = 122738070. Its totient is φ = 56648328.

The previous prime is 84972473. The next prime is 84972509. The reversal of 84972501 is 10527948.

84972501 is a `hidden beast` number, since 84 + 9 + 72 + 501 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55487601 + 29484900 = 7449^2 + 5430^2 .

It is not a de Polignac number, because 84972501 - 2¹¹ = 84970453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84972509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4720686 + ... + 4720703.

It is an arithmetic number, because the mean of its divisors is an integer number (20456345).

Almost surely, 2^84972501 is an apocalyptic number.

It is an amenable number.

84972501 is a deficient number, since it is larger than the sum of its proper divisors (37765569).

84972501 is a wasteful number, since it uses less digits than its factorization.

84972501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9441395 (or 9441392 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 84972501 is about 9218.0529939896. The cubic root of 84972501 is about 439.6355470354.

The spelling of 84972501 in words is "eighty-four million, nine hundred seventy-two thousand, five hundred one".