26477664 has 48 divisors (see below), whose sum is σ = 70362432. Its totient is φ = 8716928.

The previous prime is 26477651. The next prime is 26477701. The reversal of 26477664 is 46677462.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6307 + ... + 9629.

It is an arithmetic number, because the mean of its divisors is an integer number (1465884).

Almost surely, 2^26477664 is an apocalyptic number.

26477664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26477664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35181216).

26477664 is an abundant number, since it is smaller than the sum of its proper divisors (43884768).

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

26477664 is a wasteful number, since it uses less digits than its factorization.

26477664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419 (or 3411 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The square root of 26477664 is about 5145.6451490557. The cubic root of 26477664 is about 298.0528110839.

The spelling of 26477664 in words is "twenty-six million, four hundred seventy-seven thousand, six hundred sixty-four".