86029945 has 16 divisors (see below), whose sum is σ = 109528848. Its totient is φ = 64645120.

The previous prime is 86029939. The next prime is 86029949. The reversal of 86029945 is 54992068.

It can be written as a sum of positive squares in 8 ways, for example, as 25765776 + 60264169 = 5076^2 + 7763^2 .

It is not a de Polignac number, because 86029945 - 2⁷ = 86029817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86029949) 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 15 ways as a sum of consecutive naturals, for example, 72255 + ... + 73435.

It is an arithmetic number, because the mean of its divisors is an integer number (6845553).

Almost surely, 2^86029945 is an apocalyptic number.

86029945 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86029945 is a deficient number, since it is larger than the sum of its proper divisors (23498903).

86029945 is a wasteful number, since it uses less digits than its factorization.

86029945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 86029945 is about 9275.2328811734. The cubic root of 86029945 is about 441.4517218412.

The spelling of 86029945 in words is "eighty-six million, twenty-nine thousand, nine hundred forty-five".