26980004 has 6 divisors (see below), whose sum is σ = 47215014. Its totient is φ = 13490000.

The previous prime is 26979977. The next prime is 26980061. The reversal of 26980004 is 40008962.

It can be written as a sum of positive squares in only one way, i.e., 25020004 + 1960000 = 5002^2 + 1400^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3372497 + ... + 3372504.

It is an arithmetic number, because the mean of its divisors is an integer number (7869169).

Almost surely, 2^26980004 is an apocalyptic number.

It is an amenable number.

26980004 is a deficient number, since it is larger than the sum of its proper divisors (20235010).

26980004 is a wasteful number, since it uses less digits than its factorization.

26980004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745005 (or 6745003 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 26980004 is about 5194.2279503310. The cubic root of 26980004 is about 299.9259224506.

Adding to 26980004 its reverse (40008962), we get a palindrome (66988966).

The spelling of 26980004 in words is "twenty-six million, nine hundred eighty thousand, four".