26986590 has 48 divisors (see below), whose sum is σ = 73221408. Its totient is φ = 6883008.

The previous prime is 26986571. The next prime is 26986621. The reversal of 26986590 is 9568962.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4449 + ... + 8588.

It is an arithmetic number, because the mean of its divisors is an integer number (1525446).

Almost surely, 2^26986590 is an apocalyptic number.

26986590 is an abundant number, since it is smaller than the sum of its proper divisors (46234818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26986590 is a wasteful number, since it uses less digits than its factorization.

26986590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13073 (or 13070 counting only the distinct ones).

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

The square root of 26986590 is about 5194.8618845933. The cubic root of 26986590 is about 299.9503251085.

The spelling of 26986590 in words is "twenty-six million, nine hundred eighty-six thousand, five hundred ninety".