86724946 has 16 divisors (see below), whose sum is σ = 162187200. Its totient is φ = 33788880.

The previous prime is 86724941. The next prime is 86724959. The reversal of 86724946 is 64942768.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86724896 and 86724905.

It is not an unprimeable number, because it can be changed into a prime (86724941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281421 + ... + 281728.

It is an arithmetic number, because the mean of its divisors is an integer number (10136700).

Almost surely, 2^86724946 is an apocalyptic number.

86724946 is a deficient number, since it is larger than the sum of its proper divisors (75462254).

86724946 is a wasteful number, since it uses less digits than its factorization.

86724946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563169.

The product of its digits is 580608, while the sum is 46.

The square root of 86724946 is about 9312.6229387858. The cubic root of 86724946 is about 442.6373046836.

The spelling of 86724946 in words is "eighty-six million, seven hundred twenty-four thousand, nine hundred forty-six".