86723937 has 6 divisors (see below), whose sum is σ = 125267922. Its totient is φ = 57815952.

The previous prime is 86723933. The next prime is 86723939. The reversal of 86723937 is 73932768.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 80568576 + 6155361 = 8976^2 + 2481^2 .

It is not a de Polignac number, because 86723937 - 2² = 86723933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86723892 and 86723901.

It is not an unprimeable number, because it can be changed into a prime (86723933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4817988 + ... + 4818005.

It is an arithmetic number, because the mean of its divisors is an integer number (20877987).

Almost surely, 2^86723937 is an apocalyptic number.

It is an amenable number.

86723937 is a deficient number, since it is larger than the sum of its proper divisors (38543985).

86723937 is a wasteful number, since it uses less digits than its factorization.

86723937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9635999 (or 9635996 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 86723937 is about 9312.5687648468. The cubic root of 86723937 is about 442.6355880581.

The spelling of 86723937 in words is "eighty-six million, seven hundred twenty-three thousand, nine hundred thirty-seven".