86994045 has 24 divisors (see below), whose sum is σ = 151455096. Its totient is φ = 46192128.

The previous prime is 86994001. The next prime is 86994059. The reversal of 86994045 is 54049968.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20848356 + 66145689 = 4566^2 + 8133^2 .

It is not a de Polignac number, because 86994045 - 2²³ = 78605437 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6337 + ... + 14633.

It is an arithmetic number, because the mean of its divisors is an integer number (6310629).

Almost surely, 2^86994045 is an apocalyptic number.

It is an amenable number.

86994045 is a deficient number, since it is larger than the sum of its proper divisors (64461051).

86994045 is a wasteful number, since it uses less digits than its factorization.

86994045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8541 (or 8538 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 86994045 is about 9327.0598261188. The cubic root of 86994045 is about 443.0946520197.

The spelling of 86994045 in words is "eighty-six million, nine hundred ninety-four thousand, forty-five".