86625973 has 6 divisors (see below), whose sum is σ = 100769046. Its totient is φ = 74250792.

The previous prime is 86625971. The next prime is 86626003. The reversal of 86625973 is 37952668.

It can be written as a sum of positive squares in only one way, i.e., 66618244 + 20007729 = 8162^2 + 4473^2 .

It is not a de Polignac number, because 86625973 - 2¹ = 86625971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86625971) 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, 883890 + ... + 883987.

It is an arithmetic number, because the mean of its divisors is an integer number (16794841).

Almost surely, 2^86625973 is an apocalyptic number.

It is an amenable number.

86625973 is a deficient number, since it is larger than the sum of its proper divisors (14143073).

86625973 is a wasteful number, since it uses less digits than its factorization.

86625973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767891 (or 1767884 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 86625973 is about 9307.3075053960. The cubic root of 86625973 is about 442.4688571186.

The spelling of 86625973 in words is "eighty-six million, six hundred twenty-five thousand, nine hundred seventy-three".