26609985 has 32 divisors (see below), whose sum is σ = 47520000. Its totient is φ = 14128128.

The previous prime is 26609977. The next prime is 26609987. The reversal of 26609985 is 58990662.

It is not a de Polignac number, because 26609985 - 2³ = 26609977 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 26609985.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26609987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59041 + ... + 59489.

It is an arithmetic number, because the mean of its divisors is an integer number (1485000).

Almost surely, 2^26609985 is an apocalyptic number.

It is an amenable number.

26609985 is a deficient number, since it is larger than the sum of its proper divisors (20910015).

26609985 is a wasteful number, since it uses less digits than its factorization.

26609985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 26609985 is about 5158.4866966970. The cubic root of 26609985 is about 298.5484883732.

The spelling of 26609985 in words is "twenty-six million, six hundred nine thousand, nine hundred eighty-five".