26861622 has 16 divisors (see below), whose sum is σ = 54371520. Its totient is φ = 8845832.

The previous prime is 26861621. The next prime is 26861623. The reversal of 26861622 is 22616862.

It is an interprime number because it is at equal distance from previous prime (26861621) and next prime (26861623).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26861621) 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, 26472 + ... + 27467.

It is an arithmetic number, because the mean of its divisors is an integer number (3398220).

Almost surely, 2^26861622 is an apocalyptic number.

26861622 is an abundant number, since it is smaller than the sum of its proper divisors (27509898).

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

26861622 is a wasteful number, since it uses less digits than its factorization.

26861622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54027.

The product of its digits is 13824, while the sum is 33.

The square root of 26861622 is about 5182.8198888250. The cubic root of 26861622 is about 299.4866108286.

Adding to 26861622 its product of digits (13824), we get a triangular number (26875446 = T₇₃₃₁).

The spelling of 26861622 in words is "twenty-six million, eight hundred sixty-one thousand, six hundred twenty-two".